See
Dora 1
The German submarine base for the 13th flotilla during the German occupation of Norway (1940 - 1945). Today the bunker houses several archives, among them are the Trondheim city archives, NTNU university and governmental archives.
Listing from Wikivoyage: Trondheim, CC BY-SA 4.0.
Updated 28 Sept 2026. Something wrong? Tell us.