People visit the Xi'an city wall scenic spot in Xi'an, northwest China's Shaanxi Province, March 4, 2020. The scenic spot has applied online reservation mode to control the number of visitors within a reasonable range, to minimize the risk of cross-infection and ensure travelling safety amid the novel coronavirus outbreak. (Xinhua/Liu Xiao)
Visitors take temperature checking before entering into the Xi'an city wall scenic spot in Xi'an, northwest China's Shaanxi Province, March 4, 2020. The scenic spot has applied online reservation mode to control the number of visitors within a reasonable range, to minimize the risk of cross-infection and ensure travelling safety amid the novel coronavirus outbreak. (Xinhua/Liu Xiao)
Aerial photo taken on March 4, 2020 shows the Xi'an city wall scenic spot in Xi'an, northwest China's Shaanxi Province. The scenic spot has applied online reservation mode to control the number of visitors within a reasonable range, to minimize the risk of cross-infection and ensure travelling safety amid the novel coronavirus outbreak. (Xinhua/Liu Xiao)
A staff conducts disinfection at the Xi'an city wall scenic spot in Xi'an, northwest China's Shaanxi Province, March 4, 2020. The scenic spot has applied online reservation mode to control the number of visitors within a reasonable range, to minimize the risk of cross-infection and ensure travelling safety amid the novel coronavirus outbreak. (Xinhua/Liu Xiao)
Aerial photo taken on March 4, 2020 shows the Yongning Gate of Xi'an city wall scenic spot in Xi'an, northwest China's Shaanxi Province. The scenic spot has applied online reservation mode to control the number of visitors within a reasonable range, to minimize the risk of cross-infection and ensure travelling safety amid the novel coronavirus outbreak. (Xinhua/Liu Xiao)
People visit the Xi'an city wall scenic spot in Xi'an, northwest China's Shaanxi Province, March 4, 2020. The scenic spot has applied online reservation mode to control the number of visitors within a reasonable range, to minimize the risk of cross-infection and ensure travelling safety amid the novel coronavirus outbreak. (Xinhua/Liu Xiao)
