An underwater look at the weapon that destroyed one of the Civil War's greatest ships, as well as the torpedo technology that changed military warfare.
EP2 America's Lost TreasuresJan 01, 0001
Experts explore how the history of America is hidden beneath its harbours, shorelines and street.
EP3 Disasters at SeaJan 01, 0001
The team explores the watery graves of passenger ships and war machines as they investigate what led to such shocking maritime disasters.