Cities of the Underworld
Don Wildman travels to the farthest and deepest reaches of the globe, using cutting-edge technology to explore mysteries buried deep underground.
13. Alcatraz Down Under
0.0Feb 9, 2009 · 43 min
Beneath the sunny façade of Sydney, Australia lies a dark past. Underground Sydney is explored. Included: a 19th-century prison; caves that were once home to fugitive outlaws; gold mines. Also: a secret World War II storage place for chemical weapons is toured by those who once worked there.