Dongsi is located in the middle of Dongcheng District, Beijing, on the east side of Dongsi North Street. In the Yuan Dynasty, it was called Cross Street. In the Ming Dynasty, a four-column and three-story wooden archway was built on each side of the intersection. Because it is located in the east of the imperial city, it is called Dongsi Archway, or Dongsi for short. After the archway disappeared over time, Dongsi has been used as a place name to this day, generally referring to the intersection of Dongsi South Street, Dongsi North Street, Dongsi West Street, Chaoyangmen Nei Street and the surrounding areas. The main architectural monuments include Prince Fu's Mansion, Chongli Residence, Nanxincang, the architectural remains of Daci Yanfu Palace, Duan Qirui's Residence, etc.
Xisi is the name of a place in Beijing, formerly known as "Xisi Archway". It was first built in the Yuan Dynasty. It was named after a wooden archway on the east, west, north and south of the intersection. It was demolished for road construction in 1954 and the place name was changed to Xisi. The Xisi Crossroads was the place where prisoners were executed in the Ming Dynasty. Liu Jin, the great eunuch during the Wuzong period of the Ming Dynasty, was executed here; after the restoration of Yingzong of the Ming Dynasty, Yu Qian, who defended Beijing in the first year of Tianshun, was also killed here; in the second year of Chongzhen, the Later Jin army besieged Beijing, and Yuan Chonghuan led reinforcements to defeat the Jin soldiers, and Chongzhen The emperor fell into Huang Taiji's counterintuitive plan, and Yuan Chonghuan was unjustly killed here. The West Fourth Archway is located in Fucheng Gate, west of the Imperial City, and is symmetrical with the "East Fourth Archway" in the east of the Imperial City. It is an important transportation thoroughfare in Beijing, and businesses around it are prosperous