The Secret Military Fortresses Hidden in the Swiss Alps
Por um escritor misterioso
Descrição
These clandestine bunkers helped keep Switzerland out of WWII. Now they house everything from museums to raclette cheese.
Swiss Mountain Fortress
The World's 30 Most Impressive Fortresses
Inside the Haunting Remains of Secret WWII Bunkers
Switzerland's Jungfrau Region: Interlaken and Swiss Military Secrets - Rick Steves' Europe Travel
Inside the Haunting Remains of Secret WWII Bunkers
Switzerland's Historic Bunkers Get a New Lease on Life, Travel
Bunker in the mountain hi-res stock photography and images - Alamy
Self Sabotage: The Swiss Strategy of Rigging Vital Infrastructure to Explode - 99% Invisible
An alpine battleship as a modern data bunker?
de
por adulto (o preço varia de acordo com o tamanho do grupo)