Aeroseum, Military aviation museum in Säve, Sweden
Aeroseum occupies a rock cavern hangar at Säve, north of Gothenburg, built between 1950 and 1955 for Göta Air Flotilla (F 9). The underground facility covers 22,000 m², lies almost 30 metres below ground and is as large as three football pitches. It displays around twenty aircraft, including Draken and Viggen jets, helicopters and the oldest surviving Saab Safir.
The site was built in 1955 as a secret Air Force base to protect aircraft from nuclear attacks. After the Cold War ended, the bunker was converted into a museum and now displays Swedish aviation technology and defense history.
The museum reflects how aviation shaped Swedish identity and the role fighter jets played during Cold War tensions. Visitors can see the engineering of the time and understand why these machines mattered so much to the country.
The underground location means the temperature and humidity stay stable year-round, regardless of weather outside. Visitors should wear comfortable shoes since there is much to explore and some areas have stairs.
The bunker held a standby squadron of about 14 aircraft and was said to withstand an atomic bomb. Planners faced a problem: if the runway above were hit, the jets could not take off, since no airstrip would be usable. The museum also keeps the airport's backup control tower, still in working order.
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