Aerial photo taken on Sept. 23, 2019 shows visitors touring amid flowers at Shahu ancient town in the Dawukou District of Shizuishan, northwest China's Ningxia Hui Autonomous Region. The scenic spot, transformed from saline-alkali land and garbage dump, covers an area of 20 hectares. More than 90 species of flowers are in full blossom here. (Xinhua/Tao Ming)