The Cheyenne Mountain Complex

Buried deep beneath thousands of feet of granite in Colorado is one of the most famous military installations ever built. 

Designed during the Cold War to remain operational during a nuclear attack, it features massive blast doors, buildings mounted on giant springs, and systems built to withstand catastrophe. 

It has inspired movies, television shows, conspiracy theories, and decades of speculation about what really happens inside. 

Learn more about the remarkable history of the Cheyenne Mountain Complex on this episode of Everything Everywhere Daily.

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