A tourist takes photos of the scene of sunset at the Singing Sand Dune in Dunhuang, northwest China's Gansu Province, July 11, 2016. (Xinhua/Xin Yuewei)
A tourist takes photos of the scene of sunset at the Singing Sand Dune in Dunhuang, northwest China's Gansu Province, July 11, 2016. (Xinhua/Xin Yuewei)