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 Rescue from Devils Tower 03:25 Wind Cave National Park 02:50 The Black Hills and Deadwood 01:31 Mt. Rushmore Maintenance 02:40 Mt. Rushmore National Memorial 02:23 Black Hills & Native Americans 02:09 Fireworks at Mt. Rushmore 01:52 Custer State Park 01:40 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 Rock Breaks Climber's Back 02:16 Epic Manhunt in Grand Canyon 02:10 Marilyn's Missing Diary 02:10 Rock Climber's Mecca 01:24 Reckless Tank Driver 03:10 The Kissing Sailor 03:07 The Grand Canyon South Rim 02:28 Tennessee's Point Park 02:04 High Line Park 02:21 Red Rock Canyon 02:46 We Recommend South Dakota's Must-See Attractions 16 Photos This Western Road Trip is All About Landscape and Wildlife 21 Photos Where to Travel in June Disappearing Places 16 Photos Park Secrets: Bright Lights, Big City 14 Photos Yosemite's 13 Must-See Attractions 13 Photos
