Trondheim They are all a part of the Diocese of Nidaros, which is based in Trondheim at the Nidaros Cathedral. Many of the churches are several hundred years old, with a couple which were built almost 1,000 years ago. The Roman Catholic Sankt Olav domkirke is the cathedral episcopal see of the exempt Territorial Prelature of Trondheim. The Trondheim Museum of Arts has Norway's third largest public art collection, mainly Norwegian art from the last 150 years. The National Museum of Decorative Arts boasts a large collection of decorative arts and design, including a great number of tapestries from the Norwegian
Trondheim city and its citizens were also subject to harsh treatment by the occupying powers, including imposition of martial law in October 1942. During this time the Germans turned the city and its environs into a major base for submarines (which included building the large submarine base and bunker DORA I), and also contemplated a scheme to build a new city for 300,000 inhabitants, "Nordstern" ("Northern Star"), centred southwest of Trondheim, near the wetlands of Øysand in the outskirts of Melhus municipality. This new metropolis was to be accompanied by a massively expanded version of the already existing naval base, which