2 Season
20 Episode
Underground Marvels - Season 2 Episode 5 Ireland's Underground Alcatraz
Subterranean military fortresses situated on the southern coast of Ireland have protected against enemy invasion for over 400 years, and now, experts investigate how this powerful stronghold transformed into a brutal and terrifying prison.
- Year : 2021
- Country : United Kingdom, United States of America
- Genre : Documentary
- Studio : Science, U&Yesterday
- Keyword :
- Director :
- Cast :
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