In Photos: The U.S. Plan During a Nuclear Armageddon

White Sulphur Springs, West Virginia

A dormitory for lawmakers inside a once-secret cold war nuclear bunker built for members of Congress beneath Greenbrier, a four-star resort near White Sulphur Springs. The 112,544 sq ft (34,303-sq metre) bomb shelter, completed in 1961, included enough beds and supplies to accommodate all 535 lawmakers, as well as one staff member each

White Sulphur Springs, West Virginia

The press briefing room inside the bunker. There were also decontamination chambers and an intensive care unit, all surrounded by 3-5ft of concrete

Raven Rock Mountain Complex, Pennsylvania

The B entrance portal into a 650-acre nuclear bunker and national security site built in a hollowed-out mountain near Blue Ridge Summit. Constructed during the cold war, the facility was conceived as a backup for the Pentagon and built to house military leaders, as well as the president, in the event of a nuclear disaster. Entry is through one of four portals, each protected by a 34-ton blast door