Scenery along Qinghai - Tibet highway

Being one of the highest highways in the world, Qinghai-Tibet highway starts from Xining, Qinghai Province. The highway crosses four mountains, namely Kunlun Mountain, Fenghuo Mountain, Tangula Mountain, and Nyainqentanglha Mountain. It spans three rivers, Tongtian River, Tuotuo River and Chuma'er River. [Photo by Chen Zhu]