Workers reinforce the cliffs at Goose Hill in Liuzhou City, South China’s Guangxi Zhuang Autonomous Region, Sept. 19, 2017. The city, with a population of nearly 4 million, features extensive karst landforms and has to spend huge amounts each year to stabilize sections of cliff as well as other areas to avert rockfall and landslides. (Photo: China News Service/Wang Yizhao)
