(251013) -- XI'AN, Oct. 13, 2025 (Xinhua) -- People walk along the city wall in Xi'an, northwest China's Shaanxi Province, Oct. 13, 2025. After the continuous autumn rain, moss and other plants have covered the city wall with a green coat, attracting people to watch and take photos.
The 13.74-kilometer-long ancient city wall that surrounds Xi'an is one of the longest and best-preserved of its kind in China. (Xinhua/Shao Rui)














