Switzerland's Hidden Secrets [Home of Roths, CERN, WEF. . .]
Extensive secret tunnel systems are carved and camouflaged into these mountains, and you would never know they exist. And that only scratches the surface of what's happening underground here. For each above-ground bed in Switzerland there's an underground bunker-bed, a fall-out shelter space for every single man, woman and child in the country. Every home either needs to have its own underground bunker, or the owners need to pay into a fund to maintain a community bunker. Planning permission for new construction is only obtained with the provision of a matching underground bomb shelter.
https://www.backroads.com/blog/switzerlands-hidden-secrets