Photo taken on Oct. 22, 2014 shows a man taking picture of the setting sun by the waterside of Lake Rakshastal (La'nga Co) in Ali Prefecture of southwest China's Tibet Autonomous Region. Lake Rakshastal, at an altitude of 4,573 meters and to the east of sacred Lake Manasarovar (Mapam Yumco), is called "lake of the demon" due to its desolate landscape. (Xinhua/Liu Dongjun)