An aerial drone photo taken on July 6, 2026 shows the clouds scenery after rainfall at the ancient Great Wall at Zunhua City, north China's Hebei Province. (Photo by Liu Mancang/Xinhua)

An aerial drone photo taken on July 6, 2026 shows the clouds scenery after rainfall at the Jinshanling section of the Great Wall at Luanping County of Chengde City, north China's Hebei Province. (Photo by Zhou Wanping/Xinhua)

An aerial drone photo taken on July 6, 2026 shows the clouds scenery after rainfall at the Jinshanling section of the Great Wall at Luanping County of Chengde City, north China's Hebei Province. (Photo by Zhou Wanping/Xinhua)

This photo taken on July 6, 2026 shows the clouds scenery after rainfall at the Jinshanling section of the Great Wall at Luanping County of Chengde City, north China's Hebei Province. (Photo by Zhou Wanping/Xinhua)

An aerial drone photo taken on July 6, 2026 shows the clouds scenery after rainfall at the ancient Great Wall at Zunhua City, north China's Hebei Province. (Photo by Liu Mancang/Xinhua)

This photo taken on July 6, 2026 shows the clouds scenery after rainfall at the Jinshanling section of the Great Wall at Luanping County of Chengde City, north China's Hebei Province. (Photo by Zhou Wanping/Xinhua)

An aerial drone photo taken on July 6, 2026 shows the clouds scenery after rainfall at the ancient Great Wall at Zunhua City, north China's Hebei Province. (Photo by Liu Mancang/Xinhua)