Autumn scenery of the Qilian Mountains in Zhangye city, Gansu province, October 17, 2016. The Qilian Mountains are one of China's major mountain ranges, forming the border between Qinghai and Gansu provinces in northern China. Every year in October, as leaves turn yellow and red, the forests and mountains here are bathed in a golden shimmer. The intriguing scenery has attracted numerous tourists.[Photo by Zhang Yuan/Asianewsphoto]