Our Pick
Posted on @rawstates
The Titan Missile Museum
1963
Sahuarita, Arizona
Aspersions at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons
The only Titan II silo left intact of the 54 that stood on alert, preserved with a training missile in the tube under a partly opened door so Soviet satellites could verify it was disarmed. Visitors can sit at the console and turn the two keys.
That was 1 of the hidden places.
Location: documented spot
This place has its own thread on r/rawstates
Read what people are saying about it, or add your own.