Nanluoguxiang is a hutong located in the Jiaodaokou area on the east side of Beijing's central axis. Starting from Gulou East Street in the north to Ping'an Street in the south, the hutong is 8 meters wide and 787 meters long, and was built during the same period of the Yuan Dynasty. It is one of the oldest neighborhoods in Beijing, with a history of more than 740 years. It is the largest, highest-ranking and richest traditional residential area of the checkerboard style, which preserves the style of the courtyards in the Yuan Dynasty. And it is also the street with the strongest atmosphere of old Beijing. There are many mansions and houses of various forms in the surrounding hutongs, which are colorful and profound.