Tourists take part in a night tour at the Longmen Grottoes scenic area in Luoyang, central China's Henan Province, April 28, 2020. The Longmen Grottoes scenic area has introduced night tour programs since April 10 to meet tourist needs. Tourists can join organized night tours via online booking to visit some of the finest Chinese Buddhist art here. (Xinhua/Li Jia'nan)
