Aerial photo taken on Oct 2, 2018 shows tourists visiting Jinshanling Great Wall in Luanping County, North China’s Hebei province. [Photo/Xinhua]

Aerial photo taken on Oct 2, 2018 shows autumn scenery of Jinshanling Great Wall in Luanping county, North China’s Hebei province. [Photo/Xinhua]

Photo taken on Oct 2, 2018 shows autumn scenery of Jinshanling Great Wall in Luanping county, North China’s Hebei province. [Photo/Xinhua]