Aerial photo taken on Sept. 20, 2020 shows the mist-shrouded Mount Huashan in Weinan City, northwest China's Shaanxi Province. (Xinhua/Tao Ming)

Aerial photo taken on Sept. 20, 2020 shows tourists walking on the mist-shrouded Mount Huashan in Weinan City, northwest China's Shaanxi Province. (Xinhua/Tao Ming)

Aerial photo taken on Sept. 20, 2020 shows tourists walking on the mist-shrouded Mount Huashan in Weinan City, northwest China's Shaanxi Province. (Xinhua/Tao Ming)

Aerial photo taken on Sept. 20, 2020 shows the mist-shrouded Mount Huashan in Weinan City, northwest China's Shaanxi Province. (Xinhua/Tao Ming)

Aerial photo taken on Sept. 20, 2020 shows tourists walking on the mist-shrouded Mount Huashan in Weinan City, northwest China's Shaanxi Province. (Xinhua/Tao Ming)