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Nazi Megastructures

S1-E3 U-Boat Base
Premiere

S1-E3 U-Boat Base

Friday 1pm - 2pm National Geographic Channel
See Repeats
Friday, 2pm - 3pm National Geographic Channel +1
Sat 1 Apr, 4am - 5am National Geographic Channel
Sat 1 Apr, 5am - 6am National Geographic Channel +1
Tue 4 Apr, 12pm - 1pm National Geographic Channel
Tue 4 Apr, 1pm - 2pm National Geographic Channel +1
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Summary

A look at the concrete submarine pens built by the Nazis to protect their U-boats from allied bombs. The impenetrable safe havens were so huge and strong that they still survive today.

Education

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