Up Next
Back to Show
Watch Preview
Nazi Mega Weapons
U-Boat Base
Season 1
Episode 2
To create a haven in port for their lethal U-boat submarines, the Nazis built massive, impenetrable concrete submarine pens. Structures too immense to be hidden, they were constructed to withstand direct hits from even the biggest Allied bombs. Such was their size and strength that these pens survive today, a testament to their engineering.
Support Provided By
Unlock with PBS Passport
54:10
The Channel Islands turn into one of the most heavily fortified places on the planet.
Unlock with PBS Passport
54:10
Hitler’s mountain house became a labyrinth crowned by the awe-inspiring Eagle's Nest.
Unlock with PBS Passport
54:10
Designated the Type 21, Hitler's new submarine is a sea-faring super weapon.
Unlock with PBS Passport
54:10
When Nazis rolled across France in 1940, it was with a combined speed and ferocity.