A laborer works at the construction site of tourist service facilities in the Jiuzhaigou National Park in southwest China's Sichuan Province, Sept. 25, 2019. Tourist service facilities in Jiuzhaigou National Park are under construction. Covering a total area of 30649.84 square meters, the facilities include a tourist center, emergency shelter, and state-level observatory, etc. (Photo by Wang Xi/Xinhua)