Photo taken on Nov. 22, 2020, shows the night scenery of Dukezong ancient town of Shangri-la, a resort county in southwest China's Yunnan Province. Snow added charms to the ancient town. (Photo/China News Service)

Photo taken on Nov. 22, 2020, shows the night scenery of Dukezong ancient town of Shangri-la, a resort county in southwest China's Yunnan Province. Snow added charms to the ancient town. (Photo/China News Service)

Photo taken on Nov. 22, 2020, shows the night scenery of Dukezong ancient town of Shangri-la, a resort county in southwest China's Yunnan Province. Snow added charms to the ancient town. (Photo/China News Service)

Photo taken on Nov. 22, 2020, shows the night scenery of Dukezong ancient town of Shangri-la, a resort county in southwest China's Yunnan Province. Snow added charms to the ancient town. (Photo/China News Service)

Photo taken on Nov. 22, 2020, shows the night scenery of Dukezong ancient town of Shangri-la, a resort county in southwest China's Yunnan Province. Snow added charms to the ancient town. (Photo/China News Service)