A tourist takes photos of the night scenery in Lijiang ancient town, southwest China's Yunnan Province, Dec. 7, 2019. (Xinhua/Yang Zongyou)

Photo taken on Dec. 7, 2019 shows the night scenery in Lijiang, southwest China's Yunnan Province. (Xinhua/Yang Zongyou)

People tour Lijiang ancient town, southwest China's Yunnan Province, at night Dec. 7, 2019. (Xinhua/Yang Zongyou)

People tour Lijiang ancient town, southwest China's Yunnan Province, at night Dec. 7, 2019. (Xinhua/Yang Zongyou)

Photo taken on Dec. 7, 2019 shows the night scenery in Lijiang, southwest China's Yunnan Province. (Xinhua/Yang Zongyou)

People tour Lijiang ancient town, southwest China's Yunnan Province, at night Dec. 7, 2019. (Xinhua/Yang Zongyou)

People tour Lijiang ancient town, southwest China's Yunnan Province, at night Dec. 7, 2019. (Xinhua/Yang Zongyou)

People tour Lijiang ancient town, southwest China's Yunnan Province, at night Dec. 7, 2019. (Xinhua/Yang Zongyou)

People watch performances at night in Lijiang ancient town, southwest China's Yunnan Province, Dec. 7, 2019. (Xinhua/Yang Zongyou)