Pinterest Facebook Twitter Email Mount Rushmore's Secret 02:55 Is there a secret vault inside Mount Rushmore? Find out. From: Monumental Mysteries and A Mysteries at the Museum Special Similar Topics: History Travel's Best Related Videos The Race to the Heavens 03:13 Grand Central's Mural 03:06 Top 10 Attractions in Denver 03:44 Can a Penny Kill You? 01:44 Blood-Drenched Temples 01:34 Custer State Park 01:40 Mt. Rushmore National Memorial 02:23 Mt. Rushmore Maintenance 02:40 More Videos Wind Cave National Park 02:50 Fireworks at Mt. Rushmore 01:52 The Black Hills and Deadwood 01:31 Black Hills & Native Americans 02:09 Nashville: Top 10 Locals List 06:18 Crazy Horse Memorial 02:09 America's Stonehenge 01:57 Nashville's Parthenon 02:36 Meet Balto, Hero Sled Dog 03:17 Was Marilyn Monroe Murdered? 02:16 USS Intrepid: Floating Museum 02:25 Theremin's Amazing Invention 01:13 Salton Sea Disaster 02:48 Counterfeit Currency 03:41 Golden Gate Bridge Accident 02:18 Inside Capone's Haunted Cell 02:37 We Recommend 50 of the Most Charming Small Towns in America 50 Photos Bobby Mackey's Haunted History Top 10 Haunted Places in Baltimore 10 Photos Gettysburg's Haunted History America's Best RV Parks Moundsville's Haunted History
