Also known as Site R, this underground bunker near Blue Ridge Summit, PA is the backup Pentagon. Built in the 1950’s, it’s a self sufficient community, with reservoirs, a power plant, food reserves and enough rooms to house up to 3,000 people in case WWIII happens. No civilians are allowed inside, and no one really knows what else is in there.

This was also the site where VP Dick Cheney was evacuated to on 9/11, according to some reports. Or, he was sent to a different secret facility. For security reasons, we don’t really know.