Ireland's Underground Alcatraz
- Episode aired Sep 2, 2021
- 45m
Exploring hidden defences that have kept Cork Harbour, in Ireland, safe for over 400 years. How did this powerful stronghold became a brutal and terrifying prison. Plus, a former submarine b... Read allExploring hidden defences that have kept Cork Harbour, in Ireland, safe for over 400 years. How did this powerful stronghold became a brutal and terrifying prison. Plus, a former submarine base in the fjords of northern Norway.Exploring hidden defences that have kept Cork Harbour, in Ireland, safe for over 400 years. How did this powerful stronghold became a brutal and terrifying prison. Plus, a former submarine base in the fjords of northern Norway.