An aerial drone photo taken on June 1, 2026 shows the scenery of the Great Wall in Qianxi County, Tangshan City in north China's Hebei Province. (Photo by Liu Mancang/Xinhua)

An aerial drone photo taken on June 1, 2026 shows the scenery of the Great Wall at sunrise in Qianxi County, Tangshan City in north China's Hebei Province. (Photo by Liu Mancang/Xinhua)

An aerial drone photo taken on June 1, 2026 shows the scenery of the Great Wall at sunrise in Qianxi County, Tangshan City in north China's Hebei Province. (Photo by Liu Mancang/Xinhua)

An aerial drone photo taken on June 1, 2026 shows the scenery of the Great Wall at sunrise in Qianxi County, Tangshan City in north China's Hebei Province. (Photo by Liu Mancang/Xinhua)

An aerial drone photo taken on June 1, 2026 shows the scenery of the Great Wall at sunrise in Qianxi County, Tangshan City in north China's Hebei Province. (Photo by Liu Mancang/Xinhua)

An aerial drone photo taken on June 1, 2026 shows the scenery of the Great Wall in Qianxi County, Tangshan City in north China's Hebei Province. (Photo by Liu Mancang/Xinhua)