Chinese tourists ride camels across the dunes at Dunhuang, in northwestern Gansu province, China, on Aug. 30, 2014. (Stuart Leavenworth/McClatchy)
Chinese tourists ride camels across the dunes at Dunhuang, in northwestern Gansu province, China, on Aug. 30, 2014. (Stuart Leavenworth/McClatchy) McClatchy
Chinese tourists ride camels across the dunes at Dunhuang, in northwestern Gansu province, China, on Aug. 30, 2014. (Stuart Leavenworth/McClatchy) McClatchy