Tourists take photos in a service area along a sightseeing road, in Yan'an of northwest China's Shaanxi Province, Aug. 9, 2017. The 828.5km-long road, from Fugu County of Yulin City to the foot of Huashan Mountain in Weinan City, covers an area of numerous scenic spots, including Hukou Waterfall, Huashan Mountain and etc.. (Xinhua/Shao Rui)
