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