Photo taken on Aug. 16, 2022 shows the scenery of the Jiankou section of the Great Wall in Beijing, capital of China. (Xinhua/Chen Yehua)

Aerial panoramic photo taken on Aug. 16, 2022 shows the scenery of the Jiankou section of the Great Wall in Beijing, capital of China. (Xinhua/Chen Yehua)

Photo taken on Aug. 16, 2022 shows the scenery of the Jiankou section of the Great Wall in Beijing, capital of China. (Xinhua/Chen Yehua)

Photo taken on Aug. 17, 2022 shows the scenery of the Jiankou section of the Great Wall in Beijing, capital of China. (Xinhua/Li Jing)

Aerial photo taken on Aug. 16, 2022 shows the sunset scenery of the Jiankou section of the Great Wall in Beijing, capital of China. (Xinhua/Chen Yehua)

Aerial photo taken on Aug. 16, 2022 shows the scenery of the Jiankou section of the Great Wall in Beijing, capital of China. (Xinhua/Chen Yehua)

Aerial photo taken on Aug. 16, 2022 shows the scenery of the Jiankou section of the Great Wall in Beijing, capital of China. (Xinhua/Li Jing)

Aerial panoramic photo taken on Aug. 16, 2022 shows the sunset scenery of the Jiankou section of the Great Wall in Beijing, capital of China. (Xinhua/Chen Yehua)

Photo taken on Aug. 16, 2022 shows the scenery of the Jiankou section of the Great Wall in Beijing, capital of China. (Xinhua/Chen Zhonghao)

Photo taken on Aug. 16, 2022 shows the scenery of the Jiankou section of the Great Wall in Beijing, capital of China. (Xinhua/Chen Zhonghao)

Aerial photo taken on Aug. 17, 2022 shows the scenery of the Jiankou section of the Great Wall in Beijing, capital of China. (Xinhua/Chen Zhonghao)

Aerial photo taken on Aug. 16, 2022 shows the scenery of the Jiankou section of the Great Wall in Beijing, capital of China. (Xinhua/Chen Yehua)