Region: Sargans

An infantry fortress museum at Crap Barcazi in the Graubünden canton.

An artillery fortress museum in Graubünden, part of the eastern Swiss defensive network.

A fortress in the Sargans complex near Mels that remained in active military use until 2017.

A WWII artillery fortress disguised as a civilian house with painted-on windows, guarding the Rhine border near Lake Constance.

One of the three major fortress complexes of the National Redoubt, controlling the Rhine corridor and eastern Alpine approaches.

Part of the Fortress Sargans complex, this artillery fort guards the Wartau area and is open to the public as a museum.

A fortress in the Sargans complex at Trübbach, equipped with casemate guns for direct fire across the Rhine valley.

An artillery fortress above Pfäfers with a 10.5cm cannon hidden behind a wooden shell, one of the most iconic camouflaged Swiss bunkers.