The Armoury (Norwegian: Rustkammeret) is one of Norway’s oldest museums. The term “armoury” comes from the castles and fortresses of the Middle Age, and the rooms where weapons and armaments were stored and repaired.

Thus the Armoury has a long tradition, even though the current museum does not match the original definition. The museum is situated in the centre of Trondheim, Norway’s third largest city.
Today, it is an army museum as well as a resistance museum, emphasising Central Norway’s military history. Norway’s finest collection of edged weapons is on display at the museum. The museum shows military history from Viking times, through the Middle Ages and the union with Denmark and later Sweden.

The resistance section of the museum takes you back to Norway’s recent history, from the start of the German occupation on 9 April 1940 until peace was restored on 8 May 1945.​