1Mystery of the Volcano Temple
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.
2Rome's Gate to Hell
Experts investigate myths of a secret portal to hell in Hierapolis.
3Legend of King Midas
Experts travel inside ancient mounds to investigate the legend of Midas.
4Ghosts of Venice
Scientists use pioneering technology to discover the foundations of Venice.
5Terror in the Torture Tower
The Tower of London is a centuries-old castle shrouded in a grisly past.
6Secrets of Seahenge
A prehistoric structure could reveal mysteries to the Bronze Age.
7Secrets of the Sunken Empire
Experts explore sunken ruins and reveal one of the first great empires.
8Egypt's Floating Pyramid
Experts decode an Egyptian pyramid constructed as if it floats on water.
9Sumerian Pyramid of Death
Deep in the Iraqi desert, the world's only ziggurat towers over the remains of the first civilization ever known in human history; armed with pioneering satellite imagery, experts investigate the dark mysteries behind this massive, ancient structure.