Tourists visit the Xianrenya (Immortal Cliff) at Maiji Mountain scenic area in Tianshui, northwest China's Gansu Province, July 7, 2020. (Photo by Ma Xiping/Xinhua)

Photo taken on July 7, 2020 shows a view of the Xianrenya (Immortal Cliff) at Maiji Mountain scenic area in Tianshui, northwest China's Gansu Province. (Photo by Ma Xiping/Xinhua)

Photo taken on July 7, 2020 shows a view of the Xianrenya (Immortal Cliff) at Maiji Mountain scenic area in Tianshui, northwest China's Gansu Province. (Photo by Ma Xiping/Xinhua)

Photo taken on July 7, 2020 shows a temple at the Xianrenya (Immortal Cliff) of Maiji Mountain scenic area in Tianshui, northwest China's Gansu Province. (Photo by Ma Xiping/Xinhua)

Photo taken on July 7, 2020 shows a temple at the Xianrenya (Immortal Cliff) of Maiji Mountain scenic area in Tianshui, northwest China's Gansu Province. (Photo by Ma Xiping/Xinhua)