Scenery of Hushan section of Great Wall in Dandong, Liaoning

This photo taken on Aug. 23, 2023 shows the scenery of Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province. (Xinhua/Zhang Cheng)

This aerial photo taken on Aug. 23, 2023 shows the scenery of Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province. (Xinhua/Yang Qing)

People visit the Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province, Aug. 23, 2023. (Xinhua/Yang Qing)

This aerial photo taken on Aug. 23, 2023 shows the scenery of Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This photo taken on Aug. 23, 2023 shows the scenery of Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province. (Xinhua/Zhang Xinjing)

This aerial photo taken on Aug. 23, 2023 shows the scenery of Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Aug. 23, 2023 shows the scenery of Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This aerial photo taken on Aug. 23, 2023 shows the scenery of Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province. (Xinhua/Yang Qing)

People visit the Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province, Aug. 23, 2023. (Xinhua/Lu Zhe)

People visit the Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province, Aug. 23, 2023. (Xinhua/Zhang Xinjing)

This aerial photo taken on Aug. 23, 2023 shows the scenery of Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province. (Xinhua/Yang Qing)

This photo taken on Aug. 23, 2023 shows the scenery of Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province. (Xinhua/Lu Zhe)

This photo taken on Aug. 23, 2023 shows the scenery of Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province. (Xinhua/Zhang Cheng)

People visit the Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province, Aug. 23, 2023. (Xinhua/Yang Qing)

This aerial photo taken on Aug. 23, 2023 shows the scenery of Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province. (Xinhua/Yang Qing)

People visit the Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province, Aug. 23, 2023. (Xinhua/Zhang Xinjing)

People visit the Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province, Aug. 23, 2023. (Xinhua/Zhang Cheng)

This photo taken on Aug. 23, 2023 shows the scenery of Hushan section of the Great Wall in Dandong City, northeast China's Liaoning Province. (Xinhua/Lu Zhe)