Sounding Sand Desert In Inner Mongolia

ORDOS, CHINA - JULY 20: Bactrian camels walk on the dunes of Xiangshawan Desert, also called Sounding Sand Desert on July 20, 2013 in Ordos of Inner Mongolia Autonomous Region, China. Xiangshawan is China's famous tourist resort in the desert. It is located along the middle section of Kubuqi Desert on the south tip of Dalate League under Ordos City. Sliding down from the 110-metre-high, 45-degree sand hill, running a course of 200 metres, the sands produce the sound of automobile engines, a natural phenomenon that nobody can explain. (Photo by Feng Li/Getty Images)