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Country
United States
Genres
Documentary, Reality
Runtime
45 minutes
Total runtime
12 hours
Status
Continuing
Network
Science Channel
External links
TheTVDB page
IMDB page
TheMovieDB page
Last update
1 avril 2023 - 14:30
on 11 databases
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Secrets of the Underground
Secrets of the Underground
2017
11 members
2 seasons
16 episodes
Scientist Rob Nelson investigates the strangest underground locations in the world.
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