Dora I

Photo

by RöntgenTechniker

/ CC0

Dora I is a notable World War II-era submarine base located in Trondheim, Norway. Constructed by the German Kriegsmarine between 1941 and 1943, the facility was built to serve as a fortified submarine bunker to protect U-boats from air attacks. It is made of heavily reinforced concrete, with walls and a roof several meters thick. After the war, Dora I was repurposed for various civilian uses, including as a warehouse and industrial space.

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