A high-speed train runs past the Tianshan Mountain in northwest China's Xinjiang Uygur Autonomous Region, Dec. 3, 2015. Saturday marks the one-year anniversary of the operation of the high-speed railway linking Lanzhou, capital of northwest China's Gansu Province, and Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Cai Zengle)
