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E1 Mystery 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.
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E2 Rome's Gate to Hell
Experts investigate myths of a secret portal to hell in Hierapolis.
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E3 Legend of King Midas
Experts travel inside ancient mounds to investigate the legend of Midas.
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E4 Ghosts of Venice
Scientists use pioneering technology to discover the foundations of Venice.
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E5 Terror in the Torture Tower
The Tower of London is a centuries-old castle shrouded in a grisly past.
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E6 Secrets of Seahenge
A prehistoric structure could reveal mysteries to the Bronze Age.
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E7 Secrets of the Sunken Empire
Experts explore sunken ruins and reveal one of the first great empires.
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E8 Egypt's Floating Pyramid
Experts decode an Egyptian pyramid constructed as if it floats on water.
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E9 Sumerian 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.