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 Black Hills & Native Americans 02:09 Fireworks at Mt. Rushmore 01:52 The Black Hills and Deadwood 01:31 More Videos Custer State Park 01:40 Wind Cave National Park 02:50 Mt. Rushmore National Memorial 02:23 Mt. Rushmore Maintenance 02:40 Nashville: Top 10 Locals List 06:18 Crazy Horse Memorial 02:09 Nashville's Parthenon 02:36 America's Stonehenge 01:57 Combat Sub Sinks Union Ship 03:59 USS Intrepid: Floating Museum 02:25 Black Market Spirits 03:06 Theremin's Amazing Invention 01:13 The Bombing of the Thinker 02:44 The Pretty Boy Floyd Mystery 02:22 California 'Venus' Shot Dead 02:25 First Nuclear Test in History 02:29 We Recommend Wonders of the West 10 Photos 50 States, 50 Landmarks 50 Photos Florida's Best Secret Beaches 50 of the Most Charming Small Towns in America 50 Photos America's Best RV Parks The World's Best River Cruises 11 Photos
