DUNHUANG, July 12, 2016 (Xinhua) -- The scene of sunset is seen at the Singing Sand Dune in Dunhuang, northwest China's Gansu Province, July 11, 2016. (Xinhua/Xin Yuewei)
DUNHUANG, July 12, 2016 (Xinhua) -- The scene of sunset is seen at the Singing Sand Dune in Dunhuang, northwest China's Gansu Province, July 11, 2016. (Xinhua/Xin Yuewei)