Our Pick
Posted on @rawstates
Cheyenne Mountain, the command post inside a mountain
1966
El Paso County, Colorado
Public domain · Wikimedia Commons
Fifteen buildings on giant steel springs inside a granite mountain, behind blast doors weighing twenty-five tons, built to keep tracking Soviet missiles after a near miss. It ran NORAD's warning centre for decades and is the room every film about the end of the world has copied since.
That was 1 of the hidden places.
Location: historic site
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