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Secrets of the Underground
TV Series · TV-PG · 60 min · ★ 5.5
Documentary
For millions, the underground’s biggest mystery is how to find a seat on the Northern Line. But as SECRETS OF THE UNDERGROUND shows, there is plenty more going on beneath the surface than meets the eye. Sprawling subterranean worlds live right below our feet; bizarre phenomena and histories long thought lost lie waiting to be uncovered.
Where to watch
Streaming on Discovery+.
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Details
- Release date
- 2017-02-14
- Language
- English
- Rated
- TV-PG
- Runtime
- 60 min
- TMDB rating
- 5.5/10 (4 votes)