Video PlayerClose
Aerial photo taken on Aug. 7, 2019 shows the view of Gaolan Mountain in Lanzhou, capital of northwest China's Gansu Province. (Xinhua/He Wen)
Aerial photo taken on Aug. 7, 2019 shows the view of Gaolan Mountain in Lanzhou, capital of northwest China's Gansu Province. (Xinhua/He Wen)