Racetrack, Death Valley (Photo: Bryan Brazil/Shutterstock)Racetrack, Death Valley, California
It's a mystery of the desert: In an isolated valley between the Cottonwood and Last Chance mountain ranges, the Racetrack features rocks that appear to be moved by a secret force. The rocks sit on a playa (dry lakebed) and move across the flat surface, leaving trails in their wake. According to the National Park Service, some of the large rocks have traveled up to 1,500 feet, but no one has ever actually seen them move.
