The legendary underground lair of North American Aerospace Defense Command (NORAD) was so secretive that few photos have been published. Russ Kick at Memory Hole was good enough to locate one of 27 libraries in the world with an obscure book titled NORAD Command Post: The City Inside Cheyenne Mountain. The photos he shared will make you want to watch Dr. Strangelove again.
That Combat Operations Center deep inside Cheyenne Mountain near Colorado Springs, Colorado, has triggered lots of speculation over the decades. NORAD moved its headquarters to nearby Peterson Air Force Base in 2006, but the underground complex is still used by a number of military and intelligence agencies. Photos from inside the mountain have never been plentiful, and all images taken or released since 9/11 have been tightly controlled. But there are two older sources of images available, though they've been nearly impossible to obtain.
• Photos from Inside NORAD's Cheyenne Mountain Combat Center (Memory Hole via DisInfo)