During the Second World War, more than 20 war airfields were built in Sweden and one were at Brattforsheden, about fifty kilometres north of Karlstad. The airport was named War Airfield 16 and both accomodations and hangars were camouflaged to resemble ordinary houses and barns. Smaller anti-aircraft systems were camouflaged to melt in to the surrounding nature. Around the airfield there were several foxholes, shelters and anti-aircraft positions. After the war, the airfield remained in service until the eighties when the land was returned to its owners. Since 2003, Brattforsheden has been a cultural reserve, but the airport is still used by sports pilots.

Current status: preserved with museum (2011).

Location: 59º 36' 51,48 N 13º 55' 55,2 E

Get there: Car.

My comment:

In addition to aircraft shows of veteran aircraft, there are also old military vehicles, anti-aircraft guns and machine guns on display.

Follow up in books: Gilmour, John: Sweden, the Swastika and Stalin - The Swedish Experience in the Second World War (2011).