People walk in an alley of gingko trees in Tianshui City, northwest China's Gansu Province, Nov. 14, 2019. (Photos: Xinhua)

Girls take a selfie in an alley of gingko trees in Tianshui City, northwest China's Gansu Province, Nov. 14, 2019.

An illuminated gingko tree is seen in Tianshui City, northwest China's Gansu Province, Nov. 14, 2019.