The American Southwest: geological time machines full of bizarre and beautiful rock formations that are the result of eons of erosion. In Utah’s Zion National Park, Art explores surreal slot canyons carved from wind and water and encounters the strange rock spires that punctuate the landscape like giant exclamation points. In Arizona’s Canyon de Chelly, he rides on horseback with a Navajo guide to discover petroglyphs hidden in tribal lands – truly a photographer’s playground.