How Did It Get There: In 1956, a letter stamped “Secret” was sent to the owner of The Greenbrier by members of the government introducing their personal architect, and informing him of their plans to build. In 1992, the “Government Relocation Facility” was exposed on the cover of The Washington Post magazine, and three years later, when the lease expired, it opened to the public.

Cool Bonus: Government-sponsored construction also began on the Greenbrier Valley Airport and Interstate 64 shortly after the bunker was built. Today they benefit locals and visitors.