Peel back the layers of history with hosts Don Wildman and Eric Geller, as they explore underneath the cities of the world to find the hidden engineering feats and dark histories buried beneath. Travel though a maze of tunnels, hidden water supplies, hideouts, and tombs lost to time.
- Genre(s): Documentary, Science
- Season 3 premiere date: Oct 26, 2008
- Episode Length: 60
- Air Time: 09:00 PM
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