Experts decode an Egyptian pyramid constructed as if it floats on water.

When a mysterious Viking fortress lost underground for over a thousand years is discovered, experts investigate its buried treasures to reveal what caused the end of this fearsome civilization.

A mysterious ruined city in 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.

Attila the Hun was one of history's fiercest warriors, and new evidence reveals if his terror was responsible for the fall of Roman Empire.

The lost city of Olous: A great metropolis submerged in the Mediterranean; archaeologists uncover its secrets using pioneering technology and CGI reconstruction.

The Taj Mahal is one of the world's most beautiful monuments, but new investigations reveal dark secrets. Scientists are uncovering codes that tell a shocking story of power and betrayal, challenging everything we thought we knew about the Taj Mahal.

Unearthed decodes mysteries and combines scientific investigations with CGI animation to reveal the hidden secrets of iconic structures and monuments from around the globe to discover how they were designed, built, used, and in some cases, lost and rediscovered.

A 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.

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.

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.

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.

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.

Experts investigate the mysteries of the Bermuda Triangle using cutting-edge technology; as new discoveries reveal alien phenomena at the bottom of the ocean floor, researchers may finally uncover the truth behind this strange place.

At an ancient city 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.

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.

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 Valley of the Queens is a vast necropolis 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 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.

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.

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.

Go inside the Acropolis, an ancient engineering marvel that has stood above Athens for thousands of years. Follow the scientists working to reveal its hidden mysteries: how it was built, what it looked like, and why it's still standing today.

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.

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

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.

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.