Amazing Underground Secrets (2012)
Genres - Nature, Historical Film, Science & Technology |
Sub-Genres - Architecture & Design, World History |
Run Time - 57 min. |
Countries - United States |
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Synopsis by Cammila Collar
This multi-part documentary explores the fascinating but seldom-seen world of underground caverns, tunnels, and more. From the tunnels once used by smugglers to evade the forces of the law, to the ancient underground cities created by mysterious peoples, these feats of engineering and wonder puzzle travelers to this day.
Characteristics
Keywords
cavern, engineering, secrets
