Unearthed Season 11 is yet to be announced by Science Channel

The legendary metropolis of Xanadu (Kublai Khan's capital of the Mongol Empire in the 13th century) and its fabled existence have mystified experts for centuries; now, archaeologists use cutting-edge aerial imaging to investigate new discoveries and reveal the truth behind this mythical lost city.

The coliseums of Rome were brutal theaters of spectacle and death that helped control the sprawling Roman empire; now, archaeologists uncover the engineering secrets behind these more than 230 majestic structures to reveal the truth behind the ancient Roman world. 

On the Tigris River, the ancient city of Samarra contains a series of medieval structures that hold secrets to one of the world's greatest empires, the Abbasid Caliphate; now, archaeologists use pioneering technology to investigate its astonishing rise to power and reveal its monumental downfall. 

The clifftop ruins of Tintagel Castle in Cornwall, England are shrouded in a tumultuous history and believed to be the birthplace of King Arthur; experts use cutting-edge tech to unlock the secrets of this ancient structure and reveal the truth behind a legendary ruler. 

The ancient city of Abydos contains some of the oldest Egyptian tombs and a buried temple linked to the Cult of Osiris, a mysterious death cult; now, archaeologists use cutting-edge drone imaging to investigate long-hidden secrets behind the first pharaohs.

A colossal stone temple on Philae, a remote Egyptian island in the Nile River, mysteriously bears the names of the most famous leaders of the ancient world; now, experts use cutting-edge tech to investigate why pharaohs and emperors all built monuments at this enigmatic site.

The ancient Sumerian city of Nippur is one of the richest archaeological sites on Earth, but decades of conflict in Iraq have prevented its exploration; now, experts gain rare access to finally uncover the mysteries behind the most sacred city of Mesopotamia.

The downfall of the powerful Maya city of Palenque in southern Mexico continues to mystify archaeologists today; now, investigators gain rare access to explore lost tombs to reveal the truth behind this legendary city and the mystery behind its enigmatic queens. 

The decapitated statues of Mount Nemrut in southeastern Turkey and their eventual destruction have mystified experts for centuries; now, archaeologists decode cryptic inscriptions and use innovative geophysical analysis to reveal the mystery behind this ancient megastructure. 

The Valley of the Queens is a vast necropolis near the Valley of the Kings concealing some of Egypt's most miraculous tombs and powerful women; now, investigators use cutting-edge tech to explore lost tunnels and uncover the enigmatic secrets behind these ancient pharaohs.

The sprawling city of Persepolis was the capital of the Persian Empire, the first imperial civilization that conquered most of the known ancient world; now, experts use advanced forensic archaeology to reveal the secrets behind Persia's mysterious and dominating metropolis. 

Deep in the Iraqi desert, the world's only ziggurat, the Ziggurat of Ur, towers over the remains of the first civilization ever known in human history, Sumer of southern Mesopotamia. Armed with pioneering satellite imagery, experts investigate the dark mysteries behind this massive, ancient structure.

Surrounded by a mysterious trench, only one Egyptian pyramid, the Pyramid of Lahun, was ever constructed to look like it floats on water. Using pioneering drone-scanning technology, experts decode the ancient secrets of the pharaoh Senusret II that are locked inside its hidden tunnels.

The secrets of the world's oldest sunken city, Pavlopetri off southern Laconia in Peloponnese, Greece, are lost to history, but hi-tech underwater archaeology answers questions that books cannot; experts explore sunken ruins and reveal new discoveries about one of the first great empires. 

A prehistoric megastructure, Seahenge, emerges from the sands of an English shore in the county of Norfolk that could reveal lost mysteries of the Bronze Age, 4000 years ago; using pioneering technology and 3-D imaging analysis, experts investigate and uncover dark, ancient rituals once performed here.

The Tower of London is a centuries-old castle shrouded in a mysterious and grisly past; using cutting-edge archaeological methods, experts investigate this engineering marvel and how it transformed into an infamous prison steeped in blood and intrigue.

Venice, Italy, was once a fearsome superpower home to secrets, wealth, and treachery; today, scientists use pioneering acoustic imaging technology to discover the city's ancient foundations and reveal how it's still standing.

King Midas and his legendary golden touch is one of the most famous tales in Greek mythology; now, using advanced archaeological methods, experts travel deep inside mysterious ancient mounds near Gordion, Turkey to investigate the truth behind the myth.

According to legend, the ancient Roman city of Hierapolis hides a secret portal to the underworld beneath its streets; armed with pioneering technology, archaeologists gain rare access to investigate the deadly truth behind these hellish myths.

The Pantheon is a 2,000-year-old temple with a dark secret; today, using cutting-edge archaeological methods and brand-new evidence, experts look beneath the streets of Rome to find out why it was built and how it survived so long.

Experts investigate the secrets of seven lost cities; investigators use advanced aerial scanning, underwater drones, and 3-D mapping to reveal why these enigmatic civilizations disappeared.

Investigators use cutting-edge tech to explore seven ancient pyramids from around the world; as experts explore their lost labyrinths and alien relics, they discover unexplained connections between cultures thousands of miles and years apart. 

Cutting-edge archaeological methods help experts unearth the dark secrets hidden at seven wonders of ancient Rome. What they find challenges everything we know about this once-mighty empire.

America before Columbus was home to some of the greatest engineering marvels on the planet. Special access to hi-tech archaeological digs reveals the secrets of ancient America's Seven Wonders as experts investigate their mysterious purposes.

Seven wonders of ancient Egypt are home to mysteries that are still unsolved thousands of years after their construction, and today, investigators use cutting-edge tech and forensic analysis to reveal new secrets of the colossal engineering marvels.

The seven engineering marvels that are regarded as the modern wonders of America set the benchmark for structural innovation, and now investigators use hidden records to decode and reveal the mysteries behind these historic American icons. 

Egypt's ultimate secrets could be hidden underwater. A cutting edge archaeological investigation uses high-tech methods to scan the ocean floor in search of sunken sphinxes, temples and shipwrecks.

New discoveries at the lost city of Jericho offer fresh evidence about the biblical battle that brought its impregnable walls down; using the latest tech, experts might reveal if Joshua and the Israelites really conquered this ancient city and how.

New discoveries on Santorini, a strange island in the Mediterranean, might offer new clues in the hunt for Atlantis. Using cutting-edge archaeological methods, experts discuss the Minoan eruption as the apocalyptic event that destroyed this long-lost civilization.

New evidence recovered from the site of the World Trade Center's Twin Towers in New York City reveals answers to the greatest mysteries of these modern marvels. Using cutting-edge science and technology, experts investigate the science behind why they collapsed.

When the Nazi airship Hindenburg exploded in a giant ball of fire, the world's largest aircraft in history became one of its greatest catastrophes, and now, new technology might finally reveal what caused the fatal crash and if it was an act of sabotage.

Egypt's Black Pyramid at Dahshur is the strange, crumbling pyramid that collapsed before its pharaoh, Amenemhet III, was ever buried here, and today, it's largely unexplored; special access to a hi-tech archaeological investigation reveals what went so catastrophically wrong. Also explored is the Hawara Pyramid, where Amenemhet III was buried.

Cutting-edge tech is helping experts investigate the mysteries of the Bermuda Triangle like never before. As new discoveries reveal alien phenomena at the bottom of the ocean floor, they might finally uncover the truth behind this strange place.

Special access to cutting-edge archaeological investigations reveals the secrets of the long-lost city that was once the world's largest and richest. Using new evidence, experts discover what Babylon looked like and what caused its downfall.

Pyramids in the deserts of Sudan are the ruins of a powerful lost civilization that rivaled the pharaohs of ancient Egypt, and using cutting-edge tech and archaeological methods, experts are revealing the secrets behind the mysterious Kingdom of Kush.

The Roman Empire built Hadrian's Wall to guard its frontiers at the edge of the world; new discoveries reveal who the Romans were trying to keep out with this 72-mile-long megastructure and what it tells us about the ancient people of Iron Age Britain.

Alcatraz in San Francisco Bay is home to secrets that only cutting-edge archaeology can reveal, and using the latest science and the newest tech, experts search for hidden evidence to investigate why so many tried and failed to escape America's toughest jail.

A strange site called Saqqara is home to Egypt's very first pyramid, the Step Pyramid of Djoser, and here, experts use cutting-edge tech to reveal why the ancient Egyptians started building pyramids and if the mummified animals found here are evidence of a bizarre religious cult. 

The Seven Wonders of the Ancient World are the engineering marvels built by great minds of long-lost civilizations, but we're not sure if some even existed; new discoveries and cutting-edge archaeological methods might prove what they looked like and why they disappeared.

The gunfight at Tombstone's OK Corral turned Wyatt Earp into an American folk hero, and to find what really happened here, experts use the newest tech to discover what caused the fatal shootout and what it reveals about the dark secrets of the Wild West.

The Leaning Tower of Pisa in Italy is one of the world's most iconic buildings, and it's also the site of an 800-year-old mystery; using cutting-edge tech, experts investigate the archaeological evidence to reveal when it might finally fall over.

The long-lost underground bunker of Adolf Hitler is home to some of the greatest secrets of the Nazi regime, and now, experts use cutting-edge tech to discover new evidence of Hitler's evil vision for global domination. The bunkers reviewed are the Führerbunker in Berlin, the Wolf's Lair in eastern Poland, and Project Riese (The Giant) under Książ Castle in southwestern Poland.

The Tower of Babel is one of the most famous stories of the Bible, and to find out if it really existed, archaeologists use cutting-edge tech and the latest science to investigate how ancient engineers could have built such an extraordinary megastructure.

Mount Rushmore in the Black Hills of South Dakota is one of America's most iconic landmarks, but there are dark mysteries behind its presidential faces. Experts use cutting-edge tech and the latest science to reveal what lies beneath the rock and the secret history of its creation. The Crazy Horse Memorial in the Black Hills is also featured.

Troy is the legendary lost city at the center of the Trojan War, but its existence has never been confirmed; new discoveries and cutting-edge science might prove if this place existed and if the Greeks really conquered it with the infamous Trojan Horse.

When Pompeii was destroyed by an apocalyptic volcano in 79 AD, another Roman town was destroyed, too; experts use cutting-edge tech to investigate the secrets of Vesuvius's second victim, Herculaneum, one of the most perfectly preserved Roman towns on Earth.

The lost city of Amarna is buried in the Sahara, and evidence reveals it's home to Akhenaten, Nefertiti, Tutankhamun, and Aten, the forbidden sun god of an outlawed religion. Experts use cutting-edge tech to uncover the secret doomsday that caused this strange place to disappear.

The Iceman, Ötzi, is the world's oldest and most perfectly preserved mummy, and brand-new cutting-edge forensic technology is revealing his darkest secrets; these discoveries could change everything we know about Copper Age Europeans who lived 5,000 years ago.

The Dead Sea Scrolls are one of the Holy Land's greatest mysteries, but new discoveries might finally reveal the hidden meaning behind the strange texts, and as experts get closer to unmasking their author, they find clues of an ancient apocalypse.

New discoveries might lead investigators to the legendary group of 300 Spartan warriors who died fighting off one million invading Persians, and using cutting-edge tech, experts reconstruct the lost battlefield at Thermopylae to uncover the secrets of their last stand.

The lost Roman city of Baiae, situated on the northwest shore of the Gulf of Naples, was the Las Vegas of the ancient world -- until a mysterious calamity caused it to sink into the sea. New discoveries reveal the secrets of this sin city that, like Pompeii, some experts believe was destroyed by a supervolcano.

The Lighthouse of Alexandria in Egypt is one of the world's original Seven Wonders, but it could have been home to a mysterious superweapon, and using cutting-edge tech, experts investigate the secrets of this fabled death ray and its long-lost home.

New discoveries reveal the scandals and secrets of Nero and the Domus Aurea, his lost palace; and using cutting-edge technology, experts might confirm if the infamous emperor burned down Rome so he could build this golden wonder.

The Empire State Building is one of the wonders of the modern world, and cutting-edge tech helps experts explore it like never before, revealing the secrets of its construction and the mysteries hidden deep in its foundation.

The Nazca Lines are mysterious, alien-looking symbols carved into the remote Nazca Desert in southern Peru more than a thousand years ago, and new discoveries might finally reveal what these strange images mean and if they explain the disappearance of the people who made them.

New discoveries at a strange prehistoric site reveal the dark secrets and rituals of the mysterious people who built the world's largest stone circle, Avebury in England, three times bigger than Stonehenge, and just as enigmatic.

Deep in the jungle, the lost city of Tikal holds the dark secrets of the Maya, and now, a new investigation uncovers how it grew into a megacity home to 100,000 people, and why it was mysteriously abandoned.

The treasures of Ramses II are found at Abu Simbel, a giant temple carved into a desert cliff over 3,000 years ago, and new discoveries at this marvel reveal the secrets of ancient Egypt's greatest pharaoh.

The discovery of strange giant stone heads in the Mexican jungle leads archaeologists to La Venta, the lost capital city of the Olmec, and new investigations real evidence that the secret knowledge of these mysterious people changed life in the Americas forever.

A ground-breaking experiment reveals how ancient Egyptians built the giant obelisks of Thebes and new discoveries at this holy site could explain why these mysterious marvels triggered the downfall of the pharaohs and the end of Egypt's golden age.

The Inca capital of Cusco was said to be the site of untold gold and riches, and new discoveries at this mysterious site reveal the secrets behind this mighty empire's fall.

For the first time, archaeologists use cutting-edge technology to discover what lies beneath China's Forbidden City, revealing the dark secrets of this mysterious mega-palace that have been buried for nearly 600 years.

New discoveries at Pompeii's last unexplored area reveal the dark secrets of the doomsday event that destroyed it, and recently unearthed mummies might help answer Pompeii's most enduring mystery: why it was built on an active volcano.

Egypt's strange Bent Pyramid is one of the world's most mysterious, ancient mega-structures, and new discoveries help experts investigate its dark secret: if it was always intended to look so bizarre, or if something went catastrophically wrong.

A cutting-edge investigation into the sinking of the Titanic reveals new discoveries that might finally explain the mysteries of her last moments, and experts get closer to a shocking secret: if there was a way to save almost everyone on board.

New evidence gives rise to speculation over whether Attila the Hun, one of history's fiercest warriors, played a role in the downfall of the Roman Empire by waging a campaign of terror. This investigation centers on Trier in Germany.

The mysterious statues of Easter Island, the Moai, were built by one of the world's strangest and most isolated civilizations, the Rapa Nui. Today, new evidence reveals why they were built and what caused Easter Island's sudden downfall.

Knossos, a mysterious ruined Minoan city on the island of Crete (Greece), is the home of the mythical Labyrinth and the Minotaur, and its catastrophic downfall might have inspired the legend of Atlantis. New discoveries at this site reveal a truth stranger than fiction.

The Statue of Liberty is the home to dark American mysteries, and today, experts are using the latest science and technology to reveal her secrets and discover the inspiration for this modern marvel.

A mysterious city in ancient Egypt, Thebes, is the home of the Valley of the Kings, Luxor, Karnak, and other grand temples, and new discoveries reveal how they were built and if the god the pharaohs worshiped here helped them rise to power.

At Caral, an ancient city in Peru lost in the desert for 5,000 years, experts uncover evidence of human sacrifice and strange rituals, and new discoveries reveal that the people who lived here might have been the first civilization of the Americas.

When Trelleborg, a mysterious Viking fortress lost underground for over a thousand years, is discovered in Denmark, archaeologists investigate its buried treasures to reveal why it was built and what caused the end of this fearsome civilization.

The ancient city of Petra, a city carved from desert rock, has baffled experts for decades; now, new technologies resurrect the city and reveal why the spectacular civilization was suddenly abandoned.

New evidence uncovers the ancient mysteries behind the iconic Colosseum; archaeologists uncover the secret lives of the gladiators and make new discoveries that help explain the rise and sudden fall of the Roman Empire.

The Taj Mahal is one of the world's most beautiful monuments, but new investigations reveal its dark secrets; scientists uncover codes that tell a shocking story of power and betrayal, challenging everything originally known about the Taj Mahal.

The Egyptian mega-temple at Karnak was once the political power base of the ancient pharaohs and the home to strange religious rituals; new discoveries of skeletons tell a story of jealousy, betrayal, and the rise of a new religion that changed Egypt.

The Terracotta Army is one of China's greatest treasures, but there are still dark secrets surrounding this super-tomb; newly discovered artifacts reveal the soldiers' supernatural enemy, and human remains point to ancient China's violent past.

The lost city of Machu Picchu is one of the greatest mysteries in archaeology. Scientists do not know why this city in the clouds was built, but investigations into secret Inca codes and deformed skeletons might finally reveal its ultimate mystery.

Stirling Castle in Scotland could be the home of King Arthur's legendary Round Table; scientists have made a gruesome discovery at this mysterious site; a disfigured skeleton that could reveal the castle's bloody secrets and rewrite the history books.

Stonehenge is the ancient world's greatest wonder and biggest mystery. Now new discoveries are revealing its deepest and darkest secrets, showing how ancient magic, bizarre rituals, and brutal murder built this strange monument.

Recent forensic findings uncover the astonishing secrets of the world's most iconic monument, the great Sphinx at Giza. Join the extraordinary investigation as it reveals which pharaoh commissioned this colossal statue and why it was never finished.

New technologies reveal the startling truth behind the largest temple ever built, Angkor Wat; accompany experts as they uncover how this colossal structure was constructed and why one of the largest cities in the world was suddenly abandoned.

Giant pyramids at a strange site in Mexico are revealing the bloody secrets of a mysterious civilization that vanished 1,400 years ago. Little is know about this lost culture, but new discoveries are uncovering shocking evidence of human sacrifice. This is Teotihuacan, one of the largest cities in the ancient world.

New discoveries explore the dark secrets of Tutankhamun's tomb; Archaeologists are finally finding answers to its ancient riddles, showing how his untimely death, his calamitous burial, and an act of God made a minor king the most famous of them all.

We reveal the centuries-old secrets and mysteries of one of the most remarkable examples of Victorian engineering. Follow the cutting-edge technology that built the Palace of Westminster, including Big Ben, and find how it paved the way for the today's skyscrapers.

Examining Cologne Cathedral, a medieval structure that may hold the remains of the Bible's Three Magi in the Shrine of the Three Kings. Also, Amiens Cathedral is used for some comparisons.

The Acropolis above Athens has stood for thousands of years; scientists are working to solve its mysteries: how it was built, what it looked like, and how it has endured the test of time.

The Great Wall of China is the biggest man-made structure on Earth; the scientific mission to reveal the ancient secrets about the fortified wall.

New evidence could help solve some of the Great Pyramid's mysteries; the investigation into how it was built, revealing the truth about hidden tombs and deepest secrets.

The series premiere examines the lost city of Chichen Itza in Mexico, which contains ancient secrets of a mysterious civilization. Included: how it was built and how human sacrifice shaped the city.

Behind the presidential faces of Mount Rushmore lies concealed secrets and the Statue of Liberty contains a dark, enigmatic history; experts use the latest science and technology to investigate and reveal undiscovered mysteries of American monuments. This is a mashup of S03E04 "Statue of Liberty: The New Secrets" and S06E04 "Mount Rushmore: The Hidden Secrets."

The vast necropolis of the Valley of the Queens and the calamitous burial of King Tutankhamun contain lingering, ancient mysteries; experts using cutting-edge forensic archaeology to reveal enigmatic secrets behind Egypt's greatest pharaohs. This is a mashup of S09E02 "Valley Of Egypt's Queens" and S02E01 "Tut's Buried Secrets."

The sprawling capital of Persepolis and the site of the epic battle of Sparta at Thermopylae hold new discoveries waiting to be revealed; experts using cutting-edge forensic archaeology to reveal secrets behind these lost cities of ancient Persia. This is a mashup of S09E01 "Lost City Of Persia" (Persepolis) and S05E06 "Finding Sparta's 300" (Thermopylae).

Origins of the first known human civilizations are all mysteriously interconnected with the construction of pyramids; using pioneering archaeological methods and advanced tech, experts investigate the purpose behind these remarkable ancient structures. This is a mashup of S08E09 "Sumerian Pyramid of Death" and S06E10 "Hunt for the First Pyramid" (Step Pyramid of Djoser at Saqqara). 

Curiously constructed pyramids of ancient Egypt contain mysteries that continue to baffle archaeologists today; using the latest imaging technology and advanced scientific methods, experts decode the secrets behind these strange and unexplored ruins. This is a mashup of S08E08 "Egypt's Floating Pyramid" (Pyramid of Lahun) and S07E03 "Secrets of the Black Pyramid."

Ancient civilizations buried underwater for centuries hold answers to a mysterious and unexplained past; using cutting-edge archaeological methods and pioneering radar technology, experts investigate these sunken empires and the secrets of their remains. This is a mashup of S08E07 "Secrets of the Sunken Empire" (Pavlopetri) and S07E08 "Egypt's Sunken Treasures." 

Stonehenge is the most famous prehistoric monument in history with origins that have baffled historians for centuries. Armed with cutting-edge technology, experts reveal celestial secrets that could finally unlock the mystery of this ancient wonder. This is a mashup of S08E06 "Secrets of Seahenge" and S02E05 "Ghosts of Stonehenge."

Scotland's most celebrated castle is an astonishing fortress landmarked by centuries of epic medieval warfare. Now, experts use advanced laser scanning technology to reveal the truth behind a mysterious war machine that once stood there. This is a mashup of S08E05 "Terror in the Torture Tower" (Tower of London) and S02E06 "Hunt for King Arthur's Castle" (Stirling Castle in Scotland).

Using the latest cutting-edge tech, archaeologists uncover the secrets behind Emperor Nero's extravagant Roman complex, the Golden House, and travel deep inside mysterious ancient mounds to investigate the mythical golden touch of King Midas. This is a mashup of S08E03 "Legend of King Midas" and S05E03 "Nero's Lost Palace."

Armed with pioneering technology, archaeologists uncover the secrets of Baiae, an exclusive resort metropolis for the Roman elite that's now buried beneath the sea, and investigate a secret portal to the underworld in the ancient Roman city of Hierapolis. This is a mashup of S08E02 "Rome's Gate to Hell" (Hierapolis) and S05E05 "Pompeii's Evil Twin" (Baiae).

The timeless icons of ancient Rome serve as monuments to prodigious power, cruel madness, and the epic legends from the world's most-powerful empire; archeologists use cutting-edge tech to reveal the hidden secrets of this great city's classic wonders. This is a mashup of S08E01 "Mystery Of The Volcano Temple" (The Pantheon) and S02E11 "Lost World of the Colosseum." 

A team of archaeologists uses cutting edge technology and the latest science to finally uncover the lingering mysteries behind King Tut's secret history and how his untimely death led to a calamitous burial in a puzzling tomb. This is a mashup of S02E01 "Tut's Buried Secrets" and S06E01 "Egypt's Buried City" (Amarna).

New discoveries may finally unmask the author of the Dead Sea Scrolls and point to clues of an ancient apocalypse, and experts use the latest tech to reveal fresh evidence of the biblical battle that brought down the walls of Jericho. This is a mashup of S05E07 "Dead Sea Scrolls: The Dark Truth" and S07E07 "Jericho's Buried Secrets."

Highly advanced civilizations once dominated the Mediterranean long before the Greeks and Romans. Using cutting-edge archaeology, experts reveal new evidence of the catastrophes that brought doomsday to these long-lost superpowers. This is a mashup of S03E05 "Hunt for the Real Atlantis" (Knossos) and S06E03 "Lost City of Troy." 

The latest discoveries at cutting-edge archaeological excavations shed new light on the lost cities of the Bible, and using hi-tech investigative methods, experts are rethinking everything they know about these ancient worlds. This is a mashup of S07E07 "Jericho's Buried Secrets" and S07E01 "Lost City of Babylon."

Cutting-edge archaeology investigates the mysterious seas and rivers that are home to ancient Egypt's greatest relics; special access to new, groundbreaking research reveals the secrets of long-lost treasures hidden by water and time. This is a mashup of S07E08 "Egypt's Sunken Treasures" and S05E04 "Curse of the Seventh Wonder."

New discoveries might finally reveal the location of Atlantis, the long-lost civilization that's said to have sunk into the sea; exclusive access to cutting-edge archaeological investigations unearths fresh evidence for experts on this millennia-old mystery. This is a mashup of S03E05 "Hunt for the Real Atlantis" and S07E06 "Lost World of Atlantis."

Cutting-edge archaeological investigations reveal what happens when the world's greatest engineering marvels meet catastrophe; using the latest hi-tech methods, experts unearth the secrets of doomsday. This is a mashup of S07E04 "Curse of the Hindenburg" and S04E01 "Titanic: The Last Secrets."

Cutting-edge archaeological investigations reveal the alien symbols, statues, and relics left behind by long-lost civilizations steeped in mystery. Using the latest hi-tech methods, experts explain who built these wonders and why. This is a mashup of S05E01 "Mysteries in the Alien Desert" and S03E06 "Lost World of Easter Island."

Cutting-edge archaeological investigations at the world's greatest lost cities might finally reveal their hidden secrets, and using the latest hi-tech methods, experts try to explain why these once-proud metropolises were suddenly abandoned. This is a mashup of S02E03 "Lost Temples of the Jungle" and S04E09 "Lost City of the Maya."

New archaeological discoveries reveal secrets hidden deep inside Egypt's greatest and most mysterious pyramids, and using cutting-edge methods, experts investigate how calamities, graverobbers, and the ravages of time affected these ancient marvels. This is a mashup of S07E03 "Secrets of the Black Pyramid" and S01E02 "Dark Secrets of the Pyramid."

New archaeological discoveries are revealing the secrets behind the downfall of the once-mighty city of Babylon; using cutting-edge methods, experts unearth fresh evidence of the Seven Wonders of the Ancient World said to have once existed here. This is a mashup of S07E01 "Lost City Of Babylon" and S06E05 "Tower of Babel: The New Evidence."

The oldest pyramids in Egypt are also some of its strangest and using new, hi-tech archaeological methods, experts reveal the long-lost secrets of these mysterious ancient marvels. This is a mashup of S04E02 "Mystery of the Cursed Pyramid" and S06E10 "Hunt for the First Pyramid."

The lost city of Thebes is the mysterious ancient Egyptian capital once home to a forbidden religious cult, and using cutting-edge archaeological technology, experts are making new discoveries that reveal the secrets of this strange and sacred place. This is a mashup of S04E06 "Egypt's Lost Skyscrapers," S03E03 "Forbidden City of the Pharaohs," and S02E09 "Mystery of Egypt's Mega Temple."

New archaeological evidence is revealing the treasures inside some of the world's most mysterious ancient mega tombs; using cutting-edge methods, experts uncover the violent history behind these tombs' construction. This is a mashup of S02E08 "Treasures of the Terracotta Army" and S02E01 "Tut's Buried Secrets."

New archaeological evidence is revealing the apocalyptic destruction caused by the ancient world's most infamous volcano: Pompeii; using cutting-edge technology, experts investigate how these lost cities suddenly met armageddon. This is a mashup of S05E05 "Pompeii's Evil Twin" (Baiae) and S06E02 "Vesuvius's Secret Victim" (Herculaneum).

New discoveries reveal the strange history inside America's most famous structures, and using hi-tech archaeological methods, experts investigate how these modern marvels set new engineering records. This is a mashup of S03E04 "Statue of Liberty: The New Secrets" and S05E02 "Empire State Building: The New Secrets."

The earliest Americans built giant pyramids and carved massive, alien-looking carvings into the deserts of Peru millennia ago; using cutting-edge archaeological methods, experts reveal the long-lost secrets of these mysterious and distant civilizations. This is a mashup of S03E02 "Lost Pyramids of the Americas" (Caral) and S05E01 "Mysteries in the Alien Desert" (Nazca Lines).

Cutting-edge archaeology is revealing the secrets of the world's most mysterious mummies. As experts make new discoveries that turn up fresh leads to millennia-old cold cases, they might finally understand who these people were and why they suddenly died. This is a mashup of S05E08 "Mystery of the Ice Mummy" and S04E03 "Pompeii's Doomsday Mummies."

New discoveries are revealing the secrets of the great lost cities of the ancient world. Using hi-tech archaeological methods, experts investigate why the marvels of these once prosperous civilizations now lie in ruin. This is a mashup of S06E13 "Lost Kingdom of Kush" and S02E12 "Lost City of the Desert" (Petra).

New discoveries reveal the strange truth inside the mysterious ancient marvels of Mexico's long-lost civilizations, and using the latest scientific methods, experts uncover the location of the lost treasures that are rumored to be inside. This is a mashup of S04E07 "Curse of the Jungle Treasure" (La Venta) and S02E02 "Curse of the Blood Pyramid" (Teotihuacan).

New discoveries reveal the truth behind the legends of ancient Greek warriors and their gods, and using the latest science and archaeological methods, experts recreate the battlefield innovations that changed the course of history. This is a mashup of S06E03 "Lost City of Troy" and S05E06 "Finding Sparta's 300."

New archaeological expeditions are unearthing long-lost evidence behind the legend of King Arthur, and using this cutting-edge tech, experts might finally be able to separate fact from fiction. This is a mashup of S02E06 "Hunt for King Arthur's Castle" (Stirling Castle in Scotland) and S06E12 "Rome's Great Wall" (Hadrian's Wall).

Cutting-edge archaeological technology is revealing new secrets behind America's greatest heroes and most infamous villains; the fresh evidence uncovered at hi-tech investigations could change everything we know about these American icons. This is a mashup of S06E08 "Ghosts of the Wild West" (Tombstone's OK Corral) and S06E11 "Alcatraz's Hidden Secrets."

Egypt's first pyramids set the groundwork for the kingdom's future engineering marvels, and using cutting-edge tech, experts travel back in time to investigate the mystery of why the Egyptians began building these strange structures. This is a mashup of S04E02 "Mystery of the Cursed Pyramid" (Bent Pyramid) and S06E10 "Hunt for the First Pyramid" (Step Pyramid at Saqqara).

New evidence is revealing the dark secrets of relics unearthed from archaeology sites in China, and using the latest science and cutting-edge tech, experts might finally answer some of the greatest mysteries of long-lost Chinese civilizations. This is a mashup of S02E08 "Treasures of the Terracotta Army" and S04E04 "Secrets of the Forbidden City."

New discoveries reveal the truth behind the long-lost treasures of Ramses the Great, and using cutting-edge tech and the latest archaeological methods, experts are decoding these mysterious relics to uncover the secrets of Egypt's greatest pharaoh. This is a mashup of S02E09 "Mystery of Egypt's Mega Temple" (Karnak) and S04E08 "Ramses' Buried Treasures" (Abu Simbel).

New discoveries reveal the truth behind the long-lost treasures of Ramses the Great, and using cutting-edge tech and the latest archaeological methods, experts are decoding these mysterious relics to uncover the secrets of Egypt's greatest pharaoh. This is a mashup of S02E09 "Mystery of Egypt's Mega Temple" and S04E08 "Ramses' Buried Treasures."

The latest discoveries are revealing hard evidence of the Bible's greatest stories, and these hi-tech investigations into newly unearthed artifacts are leading to archaeological breakthroughs in the Holy Land. This is a mashup of S05E07 "Dead Sea Scrolls: The Dark Truth" and S06E05 "Tower of Babel: The New Evidence."

New discoveries at Stonehenge and other mysterious sites are revealing the secrets of the people who lived on Great Britain thousands of years ago; using the latest tech, experts might finally uncover why these strange structures were built. This is a mashup of S02E05 "Ghosts of Stonehenge" and S04E10 "Ghosts of the Stone Age" (Avebury, England).

New discoveries at America's greatest monuments are revealing their long-lost secrets; and using cutting-edge tech and the latest archaeology, experts find groundbreaking evidence that challenge everything we know about these mysterious places. This is a mashup of S03E04 "Statue of Liberty: The New Secrets" and S06E04 "Mount Rushmore: The Hidden Secrets."

New discoveries at long-lost ruins reveal the truth behind some of the greatest mysteries of the Greek world; and using cutting-edge tech and innovative archaeological methods, experts turning up groundbreaking evidence that could prove ancient myth. This is a mashup of S03E05 "Hunt for the Real Atlantis" and S06E03 "Lost City Of Troy."

Pompeii is one of the most mysterious places on the planet, and just next door, the remains of a second abandoned Roman town, Herculaneum, pose new questions about what happened when Mount Vesuvius erupted; cutting-edge tech might have answers. This is a mashup of S04E03 "Pompeii's Doomsday Mummies" and S06E02 "Vesuvius's Secret Victim" (Herculaneum).

New evidence might reveal the dark secrets of a mysterious lost city, Thebes, that was one of the most important places of ancient Egypt until an apocalyptic event changed everything. This is a mashup of S02E09 "Mystery of Egypt's Mega Temple", S04E06 "Egypt's Lost Skyscrapers", and S03E03 "Forbidden City of the Pharaohs".

New discoveries at Pompeii are challenging everything we know about the apocalyptic volcanic eruption that destroyed it, and using cutting-edge tech, a team of experts is bringing this lost world back to life to reveal Pompeii's dark and deadly secrets. This is a mashup of episodes from two Science Channel series: "Secrets of the Lost" S01E03 "Pompeii: The Deadly Mystery" and "Unearthed" S04E03 "Pompeii's Doomsday Mummies".

New discoveries at lost Maya Ruins uncover the dark secrets of their civilization, revealing how bloody human sacrifice formed the basis of a mysterious people that met an apocalyptic end. This episode is a mashup of S01E01, "Mayan City of Blood" and S04E09, "Lost City of the Maya".

New discoveries at mysterious Inca sites believed to be the home of legendary treasures reveal something darker: mummies that hold the secrets to this mighty civilization's fall. This episode is a mashup of S02E07, "Hidden City of the Incas" and S04E05, "Inca Apocalypse: the Dark Evidence."

The latest science reveals the last secrets of some of history's greatest rulers. This episode is a mashup of S03E07, "Wrath of Attila the Hun" and S02E01, "Tut's Buried Secrets."

New discoveries reveal the dark secrets behind the treasures of the most alien and mysterious placed on the planet. This episode is a mashup of S03E06, "Lost World of Easter Island" and S02E03, "Lost Temples of the Jungle."

New technology reveals mysterious secrets buried in ancient Greece. This episode is a mashup of S03E05, "Hunt for the Real Atlantis" and S01E04, "Summit of the Gods."

New findings reveal the secrets behind some of the world's most iconic monuments. This episode is a mashup of S03E04, "Statue Of Liberty: The New Secrets" and S02E04, "Secret History of the Sphinx."

New discoveries reveal the dark secrets of ancient Egypt's holiest and most mysterious cities, where the pharaohs practiced strange rituals that might have helped their rise to power. This episode is a mashup of S03E03, "Forbidden City of the Pharaohs" and S02E09 "Mystery of Egypt's Mega Temple."

New discoveries reveal evidence of human sacrifice at mysterious ancient American pyramids. This episode is a mashup of S03E02 "Lost Pyramids of the Americas" and S02E02 "Curse of the Blood Pyramids."

New treasures reveal the dark secrets of history's deadliest warriors. This episode is a mashup of S03E01 "Viking City of the Dead" and S02E06 "Hunt for King Arthur's Castle."

The latest discoveries and cutting-edge science reveal strange secrets of the mysterious lost cities. This episode is a mashup of S02E07 "Hidden City of the Incas" and S02E03 "Lost Temples of the Jungle."

The latest science and discoveries reveal new information about China's most mysterious monuments. This episode is a mashup of S01E03 "Ghosts of the Great Wall" and S02E08 "Treasures of the Terracotta Army."

New discoveries and the latest science reveal the dark secrets of some of Britain's most mysterious wonders. This episode is a mashup of S02E05 "Ghosts of Stonehenge" and S02E06 "Hunt for King Arthur's Castle."

The latest science sheds new light on the mysterious monuments once used for human sacrifice. This episode is a mashup of S01E01 "Mayan City of Blood" and S02E02 "Curse of the Blood Pyramids."

New discoveries reveal hidden secrets behind the most mysterious monuments of the Greeks and Romans. This episode is a mashup of S01E04 "Summit of the Gods" and S02E11 "Lost World of the Colosseum."

The latest science reveals new information about Egypt's most mysterious monuments. This episode is a mashup of S01E02 "Dark Secrets of the Pyramid" and S02E09 "Mystery of Egypt's Mega Temple."

New discoveries reveal the dark secrets of Egypt's greatest pharaohs. This episode is a mashup of S02E01 "Tut's Buried Secrets" and S02E04 "Secret History of the Sphinx."