Secrets of Underground London
Special | 54m 41s | Video has closed captioning.
On the surface, London is a buzzing, modern metropolis — but underneath lies a secret, hidden world, all but forgotten by the millions of people above. This program uncovers 2,000 years of subterranean history: a world of ancient caves and perfectly preserved Roman remains; mysterious rivers and gruesome plague pits; impenetrable vaults and top-secret bunkers.
Aired: 06/22/14
Expired: 01/06/19
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Secrets of Underground London
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