Aerial photo taken on April 28, 2020 shows the Longmen Grottoes scenic area illuminated at night in Luoyang, central China's Henan Province. 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)
