National Geographic - Nazi Megastructures (2013) Part 3 U Boat Base
Nazi Megastructures
Did you know? In the quest for world domination, the Nazis built some of the biggest and deadliest pieces of military hardware and malevolent technology in history? Creating huge terror machines, hi-tech superguns and some of the original weapons of mass destruction, their aim was to control a nation, conquer a continent and win the war! Over six unforgettable episodes, Nazi Megastructures uncovers the hidden remains of Hitler’s most ambitious Megastructures, telling the stories of the engineering geniuses that designed them and revealing how these structures sparked a technological revolution that changed warfare forever.
A look at the huge concrete submarine pens built by the Nazis to protect their U-Boats from allied bombs. Such was their size and strength, they still survive today.
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