Underground Marvels - Season 2 - Eps 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.
About Underground Marvels
Title: Underground Marvels
First Air Date: 2019-10-17
Last Air Date: 2021-10-07
Status: Returning Series
Rating: 6/10 (from 1 votes)
Language: EN
Seasons: 2
Total Episodes: 20
Network: Science U&Yesterday
Genres: Documentary
Production Companies: Phoenix Television, TCB Media Rights
Synopsis
Historians, engineers, and experts take a look at the underground structures, systems, and phenomena that exist beneath our feet.
