Concrete bunker from WW2. Currently used as an office building.

Washington Post article detailing the Swiss culture of cautious survivalism - a land where there is bunker space for every citizen

Described by some as the Eighth Wonder of the World. Probably not meant to be a bunker, but could be.

The bunker tour is open to anyone - $20 admission.

There were once approximately 100,000 shelters across the U.S. Most are in disrepair, but Eric has his ready

Possibly the largest privately constructed nuclear fallout shelter in the world.

Former US Govt emergency bunker, now renovated and used as a private data storage facility.

A source told Star magazine: "Tom is planning to build a $10 million bunker under his Telluride estate.". It may or may not be related to an attack by aliens, related to his Scientology beliefs

Tamil Tiger leader Velupillai Prabhakaran lives more than 40 feet under ground in a massive, well provided, and seemingly impenetrable bunker complex hewn from rocks in the middle of a thick jungle in northeast Sri Lanka.