The photo shows the Huinanzhuang Pump Station, the only large booster pump station on the main canal of the central route of the South-to-North Water Diversion Project. Located in Huinanzhuang village, Fangshan District of Beijing and next to Zhuozhou city, Hebei province, the pump station is also a key architecture for the project's Beijing segment to enable automatic flow of small-volume water and delivery of large-volume water under pressure. [Photo/China.org.cn]