Christina Smith, LDS Photo Studio
The entrance to the Granite Mountain Records Vault located in the foothills of the mountains surrounding the Salt Lake Valley. Credit: Christina Smith

From Fort Knox to the LDS Church's vaults in Little Cottonwood Canyon to the underground nuclear shelter at The Greenbrier, take a look at eight sites throughout the world that are or were heavily guarded.

Information was compiled by Can You Actually, and supplemented by our own research.

This list is not exhaustive and locations are listed in no particular order.