Season 4
01 Mysteries in the Alien Desert
45mThe Nazca Lines are mysterious symbols that have been carved into the Atacama Desert more than a thousand years ago. How and why were they created?
2019-11-1002 Alcatraz's Hidden Secrets
45mAlcatraz is one of the most famous prisons in the world. Experts investigate its remarkable engineering secrets and why it was so hard to escape from.
2019-10-1103 Mysteries of the Ice Mummy
45mThe 'Iceman' is the world's oldest and most perfectly preserved mummy. Cutting-edge forensic technology may unearth the mummy's darkest secrets.
2019-12-2904 Nero’s Lost Palace
45mThe Emperor Nero built an astonishing palace in the heart of Rome. Now using cutting-edge technology, experts investigate if he burnt the city for the building.
2019-12-2405 Curse of the Seventh Wonder
45mThe Lighthouse of Alexandria is one of the world's original Seven Wonders. Experts investigate its many secrets - did it hold a superweapon?
2019-12-0106 Dead Sea Scrolls: The Dark Truth
45mThe Dead Sea Scrolls in Israel are the oldest biblical texts. New discoveries might finally reveal the hidden meaning behind these manuscripts.
2019-12-2907 Pompeii’s Evil Twin
45mThe sunken town of Baiae remains frozen in time, lying on the seabed of the Bay of Naples. Now, marine archaeologists investigate its fascinating secrets.
2019-12-0808 Finding Sparta’s 300
45mThermopylae was the site of an iconic ancient battle. Legend says that in 480BC, 300 Spartan warriors died there - experts reconstruct the lost battlefield.
2019-12-2209 Empire State Building: The New Secrets
45mExperts use cutting-edge technology to investigate one of the wonders of the modern world. They reveal mysteries hidden in its foundation.
2019-11-17 5.010 Egypt’s Buried City
45mExperts use cutting-edge technology to investigate a lost city buried in the Sahara. Archaeologists are uncovering the city's forgotten ruins and dark secrets.
2020-08-2311 Vesuvius's Secret Victim
45mWhen Pompeii was destroyed by an apocalyptic volcano, another town was destroyed, too - Herculaneum. It is one of history's most perfectly preserved towns.
2020-08-3012 Rome's Great Wall
45mThe Roman Empire built Hadrian's Wall to guard its frontiers; new discoveries reveal who the Romans were trying to keep out with this 72-mile-long megastructure.
2020-10-1813 Hitler's Lost Bunker
45mThe underground bunker of Adolf Hitler is home to some of the greatest secrets of the Nazi regime. Experts use cutting-edge technology to uncover new evidence.
2020-09-0614 Leaning Tower of Pisa: The New Mystery
45mThe Leaning Tower of Pisa is one of the world's most iconic buildings, but why does it lean? Investigators uncover the reasons for its tilt.
2020-11-0815 Ghosts of the Wild West
45mThe infamous gunfight at the O.K. Corral only lasted 30 seconds. Now, experts use cutting-edge technology to uncover the mystery surrounding the event.
2020-11-2216 Tower Of Babel: The New Evidence
45mThe Tower of Babel is one of the most famous stories of the Bible. Archaeologists use new technology to uncover how engineers could have built it.
2021-01-2417 Lost City of Troy
45mTroy is the legendary lost city at the centre of the Trojan War, but its existence was never confirmed. New cutting-edge technology explores the ancient myth.
2021-01-2418 Mount Rushmore: The Hidden Secrets
45mMount Rushmore is one of North America's most iconic landmarks. Experts use cutting-edge technology to reveal what lies beneath the rock.
2021-01-2419 Curse of the Hindenburg
45mWhat caused the Nazi aircraft to explode into a giant ball of fire over New Jersey in 1937? Experts use cutting-edge technology to investigate the event.
2020-09-2020 Bermuda Triangle Apocalypse
45mCutting-edge technology is helping experts investigate the Bermuda triangle. Using new techniques, they search for evidence of aliens on the ocean floor.
2020-10-0421 Lost Kingdom of Kush
45mPyramids 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?
2020-09-2722 Hunt for the First Pyramid
45mSaqqara is the site of the first pyramid - the Step Pyramid of Djoser. Experts use cutting-edge technology to explore why the Egyptians built pyramids.
2020-11-2923 Lost City of Babylon
45mArchaeological investigations unearth the secrets of the long-lost city. New evidence reveals what Babylon looked like and what caused its downfall.
2020-11-0124 Hidden Secrets of the Twin Towers
45mThe World Trade Centre's iconic twin towers were an engineering marvel.
2020-09-1325 Secrets of the Black Pyramid
45mWith special access to a hi-tech archaeological investigation, experts reveal why Egypt's Black Pyramid collapsed before its pharaoh was buried there.
2020-10-2526 Egypt’s Sunken Treasures
45mA cutting-edge archaeological investigation uses hi-tech methods to scan the ocean floor in search of sunken sphinxes, temples, and shipwrecks.
2021-01-2427 Lost World of Atlantis
45mNew discoveries on a strange Mediterranean island might offer new clues in the hunt for Atlantis. Experts reveal the apocalyptic event that destroyed it.
2020-11-1528 Jericho's Buried Secrets
45mNew discoveries at the lost city of Jericho offer fresh evidence about the biblical battle that brought its impregnable walls down.
2020-12-13