Tourists take photos of yardang landforms at Dunhuang Yardang National Geopark in Dunhuang, northwest China's Gansu Province, May 24, 2015. (Photo: Xinhua/Wang Song)
RIGHT BG
Tourists take photos of yardang landforms at Dunhuang Yardang National Geopark in Dunhuang, northwest China's Gansu Province, May 24, 2015. (Photo: Xinhua/Wang Song)