Pinterest Facebook Twitter Email Sliding Stones 01:56 Scientists are baffled by a set of stones that seem to move on their own. From: Don Wildman, Monumental Mysteries and Ellis Island, Sailing Stones, Alamo Treasure Similar Topics: History Travel's Best National Parks Related Videos Mt. Rushmore National Memorial 02:23 Mt. Rushmore Maintenance 02:40 Custer State Park 01:40 Rescue from Devils Tower 03:25 Wind Cave National Park 02:50 The Black Hills and Deadwood 01:31 Black Hills & Native Americans 02:09 Fireworks at Mt. Rushmore 01:52 More Videos Crazy Horse Memorial 02:09 Massive Flood Damages Yosemite 02:09 Yosemite's Marijuana Problem 01:40 The Freakiest Fish of All 02:46 Catch the Spirit of Yosemite 03:09 Ghostly Tales from the Parks 02:02 Marilyn's Missing Diary 02:10 Rock Breaks Climber's Back 02:16 Epic Manhunt in Grand Canyon 02:10 The Kissing Sailor 03:07 Reckless Tank Driver 03:10 Rock Climber's Mecca 01:24 Sandia Peak Tram 02:06 Wai'anapanapa State Park 02:42 Tennessee's Point Park 02:04 Red Rock Canyon 02:46 We Recommend Must-See Montreal 15 Photos World Heritage-Worthy Sites 17 Photos Top 8 Family Vacations in America 16 Photos The Places the Beach Boys Sang About 14 Photos No-Passport-Required Destinations 20 Photos New Seven Wonders of the World 14 Photos
