PBS - Secrets of Underground London (2014)

Unearth over 2000 years of history deep below the streets of London

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. Secrets of Underground London uncovers 2000 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. As we dig deep, we'll unearth some of the most extraordinary stories of the darkest side of the city.

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