Photo taken on Sept. 12, 2015 shows a Buddha statue in the scenic area of Xumishan Grottoes in Guyuan City, northwest China's Ningxia Hui Autonomous Region. The Xumishan Grottoes, which were built between the Northern Wei Dynasty (386-534) and the Tang Dynasty (618-907), have more than 500 Buddhist statues and were listed as a key state-level cultural site in 1982. (Xinhua/Wang Song)