Nazi Megastructures

Season 1 • Episode 3: U-Boat Base • Watch with subtitles

Season:
Episode:
U-Boat Base

Episode 3: U-Boat Base

November 25, 2013 • 45 min

This episode describes the immense and impenetrable concrete and steel submarine pens that the Nazis built to protect their precious and deadly U-boats from Allied attacks.

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