Secrets of Underground London
2014| IMDb 6.2
On the surface, London is a buzzing, modern metropolis--but underneath lies a secret, hidden world. 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. Dig deep to unearth some of the most extraordinary stories of the darkest
Director: Gareth Sacala, Vicky Matthews
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Streaming info last checked: 20 Jan 2026