Inside This Mountain, Old Films Live Forever

April 30, 2015 - Where do National Geographic and major motion picture studios store their most important films? At a secure storage site, known as Iron Mountain, which is housed in a huge, repurposed mine in rural western Pennsylvania. Here, film reels for old movies—such as Jane Goodall and the Wild Chimps—are kept in temperature-controlled "vaults," where they are preserved for future generations to enjoy. In this video, take a rare tour of the facility and get an eerie look at its Cold War roots.