When a Viking fortress lost underground for over 1,000 years is discovered, experts investigate its buried treasures. What caused this civilization's demise?

The Statue of Liberty is the home to dark American mysteries. Now, experts are using the latest science and technology to reveal her secrets.

The infamous gunfight at the O.K. Corral only lasted 30 seconds. Now, experts use cutting-edge technology to uncover the mystery surrounding the event.

Mount Rushmore is one of North America's most iconic landmarks. Experts use cutting-edge technology to reveal what lies beneath the rock.

Cutting-edge technology is helping experts investigate the Bermuda triangle. Using new techniques, they search for evidence of aliens on the ocean floor.

Pyramids in the deserts of Sudan are the ruins of a powerful lost civilisation that rivalled Egypt. However, why are the pyramids there and who built them?

Saqqara is the site of the first pyramid - the Step Pyramid of Djoser. Experts use cutting-edge technology to explore why the Egyptians built pyramids.

Archaeological investigations unearth the secrets of the long-lost city. New evidence reveals what Babylon looked like and what caused its downfall.

The World Trade Centre's iconic twin towers were an engineering marvel.

With special access to a hi-tech archaeological investigation, experts reveal why Egypt's Black Pyramid collapsed before its pharaoh was buried there.

A cutting-edge archaeological investigation uses hi-tech methods to scan the ocean floor in search of sunken sphinxes, temples, and shipwrecks.

New discoveries on a strange Mediterranean island might offer new clues in the hunt for Atlantis. Experts reveal the apocalyptic event that destroyed it.

New discoveries at the lost city of Jericho offer fresh evidence about the biblical battle that brought its impregnable walls down.

The Pantheon is a 2,000-year-old temple with a secret. Advanced archaeological methods and new evidence reveal why it was built and how it survived.

The ancient Roman city of Hierapolis is said to hide a secret portal to the underworld beneath its streets. Experts use pioneering technology to investigate.

A prehistoric megastructure on the sands of an English shore could reveal lost mysteries of the Bronze Age. Experts uncover ancient rituals once performed here.

The Tower of London is shrouded in a mysterious, grisly past. Experts use pioneering archaeological methods to examine how it became an infamous prison.

Experts use high-tech underwater archaeology to explore the world’s oldest sunken city and reveal new discoveries about one of the first great empires.

Experts use drone technology to explore the tunnels hidden below an Egyptian pyramid for the very first time. Plus, forensics uncover a pharaoh’s secrets.

Experts use innovative geophysical analysis to solve the mysteries of the towering Mount Nemrut in Turkey. Can they uncover the reason for its destruction?

The ancient city of Persepolis was once the greatest and richest city on Earth. Using forensic analysis, experts discover how the Persians rose to power.

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.

Deep in the Iraqi desert, investigators use new technology to unearth an ancient city like no other. What secrets lie in the sacred city of Nippur?

The powerful city of Palenque is home to mysterious temples that harbour secrets about the Maya queens. Experts investigate using pioneering technology.

Experts use innovative technology to investigate why pharaohs and emperors built a colossal temple monument on a mysterious Egyptian island.