Underground Marvels (2019)
S1E3 Secrets of the Terror Tunnels
Episode Overview
An extensive network of tunnels, constructed nearly three millennia ago, served as the backdrop for some of history's most significant battles. These confusing corridors have the potential to be one of the most formidable tools in warfare. Experts discuss the elements that contributed to the fearsome reputation of this subterranean realm.
HD
S1