The Secret Military Fortresses Hidden in the Swiss Alps

These clandestine bunkers helped keep Switzerland out of WWII. Now they house everything from museums to raclette cheese.

Secrets behind the Walls – while in switzerland

Under Cover: Secret Swiss Military Bunkers Hide in Plain Sight - WebUrbanist

Inside a Secret Military Bunker in Switzerland

Elaborate Underground Base - TV Tropes

BEST HIDDEN GEMS IN SWITZERLAND – ARZO TRAVELS - Arzo Travels

16 haunting pictures of Switzerland's secret bunkers

The Camouflaged Military Bunkers of Switzerland

Reimagined Swiss Army Bunkers

16 haunting pictures of Switzerland's secret bunkers

The Camouflaged Military Bunkers of Switzerland

Off the Beaten Track in Switzerland by Rick Steves