Following is a transcript of the video. Narrator: During the Cold War, the US government built numerous missile silos in secret locations across the country. Many sit empty and useless today.

The bunker sits on a 24 acre campground offering further accommodation, but Fulkerson encourages all visitors to take a tour. 'Most [missile silos] are abandoned or in private hands,' he added.

A Boeing-led team completed the construction of 20 new missile silos for the Ground-Based Midcourse Defense, or GMD, system at Fort Greely, Alaska. Shown here is a 2023 GMD test at Vandenberg ...