Photo taken on May 19, 2012 shows the scenery of Mt. Qomolangma. A photo exhibition of Tashi Tsering, who topped the 8,844.43-meter-high mount for 12 times, opened at a museum in Lhasa, capital of southwest China's Tibet Autonomous Region on Nov. 12, 2017. Mt. Qomolangma, located on the border of China and Nepal, is the world's highest peak. (Xinhua/Tashi Tsering)