Beredskapsmuseet is Sweden's only museum in an underground military structure from World War II: Battery Helsingborg.
The museum consists of

• One of the battery's four underground bunkers, built in 1940, still

  containing the 29 ton heavy gun Maja, The Bofors-made gun could

  reach targets up to 24,000 meters from its position in Djuramåsa.

• The battery's underground command bunker with exhibits about WW II.

• The Gun Hall, containing heavy equipment, such as tanks and

  Bofors artillery.

• Sweden's largest small arm's museum exhibition.

• Café and shop.

• Museum guide in English can be bought in the shop.