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 Fireworks at Mt. Rushmore 01:52 More Videos Black Hills & Native Americans 02:09 The Black Hills and Deadwood 01:31 Mt. Rushmore Maintenance 02:40 Wind Cave National Park 02:50 Nashville: Top 10 Locals List 06:18 Crazy Horse Memorial 02:09 Nashville's Parthenon 02:36 America's Stonehenge 01:57 Remembering Charles Dickens 02:13 The Pretty Boy Floyd Mystery 02:22 California 'Venus' Shot Dead 02:25 Counterfeit Currency 03:41 Salton Sea Disaster 02:48 Golden Gate Bridge Accident 02:18 A Deadly Maritime Tragedy 02:44 Was Marilyn Monroe Murdered? 02:16 We Recommend Monumental Mysteries Special 9 Photos Mysteries at the Museum 11 Photos Greatest Mysteries: Sturgis Pictures 10 Photos Monumental Mysteries: Escape From Slavery Pictures 9 Photos
