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.
8. London's Lost Cities
0.0Jun 11, 2007 · 43 min
For thousands of years London has been among the most powerful cities in the world, below the busy streets and marketplaces another city hides--a city of Roman baths, secret crypts, lost rivers, indestructible bunkers that could hold up to 8,000 people, Winston Churchill's hidden war-rooms; host Eric Geller.