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 Black Hills & Native Americans 02:09 Fireworks at Mt. Rushmore 01:52 The Black Hills and Deadwood 01:31 Rescue from Devils Tower 03:25 Mt. Rushmore Maintenance 02:40 Mt. Rushmore National Memorial 02:23 Custer State Park 01:40 Wind Cave National Park 02:50 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 Marilyn's Missing Diary 02:10 Ghostly Tales from the Parks 02:02 Rock Breaks Climber's Back 02:16 Epic Manhunt in Grand Canyon 02:10 Reckless Tank Driver 03:10 The Kissing Sailor 03:07 Rock Climber's Mecca 01:24 The San Francisco Fire of 1906 03:02 Wai'anapanapa State Park 02:42 Tennessee's Point Park 02:04 High Line Park 02:21 We Recommend 'Destination Fear' Explores America's Most Haunted Abandoned Locations 32 Photos 'Ghost Nation' Investigates Haunted Homes Across America 21 Photos Haunted Ireland 14 Photos Take a 'Destination Fear' Road Trip 15 Photos Visit These 11 Haunted Forests—If You Dare 11 Photos Scariest Halloween Attractions 21 Photos
