LANZHOU, June 15, 2016 (Xinhua) -- An evening sightseeing cruise passes under the Zhongshan Bridge on the Yellow River in Lanzhou, capital of northwest China's Gansu Province, June 14, 2016. Tourists can witness the enchantment of Lanzhou at night with a 50-minute evening cruise along the Yellow River in summer since June 12, 2016. (Xinhua/Chen Bin)