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An interactive, filterable map of Switzerland’s documented bunkers and fortresses. Explore by type, era, region, and status.
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History · The National Redoubt
Falsche Chalets: The Bunkers Disguised as Swiss Farmhouses
Between 1938 and the end of the Cold War, the Swiss army built dozens of fake chalets — military fortifications hidden behind painted-on windows, flower boxes, and the architectural vernacular of each region. How camouflage became an art form.
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Latest Dispatches
Operation Ant: The 1987 Drill That Proved Sonnenberg Would Fail
The first and only full-scale test of the world’s largest civilian bunker revealed 350-ton doors that wouldn’t close and communication systems that didn’t work.
From Ammunition to Appenzeller: The Bunkers Now Aging Cheese
Inside the decommissioned military installations where constant temperature and humidity create perfect conditions for Switzerland’s finest dairy.
The Gotthard Bunker Trail: A 3-Day Itinerary Through Military History
The most concentrated collection of visitable fortresses in Switzerland, from Sasso San Gottardo to the secret government bunker near Amsteg.
Bunker Profiles