Details are as follows:
Nine inner city gates: Zhengyangmen, Chongwenmen, Xuanwu Gate, Chaoyangmen, Fuchengmen, Dongzhimen, Xizhimen, Andingmen and Deshengmen.
There are seven gates in the outer city: Yongdingmen, Zuo 'anmen, You 'anmen, Guangqumen, Guang 'anmen, Dongbianmen and Xibianmen.
There are four gates in the Imperial City: Tiananmen, Di 'anmen, Dong 'anmen and Xi 'an.
There are four doors in Long Mai: Daqingmen, Duanmen, Chang 'an Left Gate and Chang 'an Right Gate.
Miyagi four gates: Wumen, Shenwumen, Donghuamen and Xihuamen.
Extended data:
There are four gates in the Imperial City-Tiananmen Gate, Di 'anmen Gate, Dong 'anmen Gate and Xi 'anmen Gate. These four gates are used by civil and military officials in the city to enter and leave the court.
Tiananmen Square 1
Tiananmen Square was founded in the 15th year of Yongle in Ming Dynasty (A.D. 14 17). Formerly known as "Chengtianmen", it means "Chengtianqiyun" and "Being ordered by Heaven". It is the main entrance of the Forbidden City. This building was destroyed by fire in 145 1 year, rebuilt in 1465, and destroyed by fire in the late Ming dynasty. It was not until the reconstruction in the eighth year of Shunzhi in Qing Dynasty (A.D. 165 1) that it generally became the style of today and was renamed "Tiananmen Square".
2. Di 'anmen
Di 'anmen is one of the important landmark buildings on the central axis of Beijing, and it is the north gate of the imperial city, while Tiananmen Square is the south gate of the imperial city. The correspondence between the north and the south means peace between heaven and earth and good weather. Di 'anmen is located in the center of the north wall of the Imperial City, with Jingshan in the south and Drum Tower in the north. It was built in the 18th year of Yongle in Ming Dynasty (1420) and rebuilt in February in the 16th year of Hongzhi (1503).
3. Dong 'anmen
Located on the east side of today's North-South Binjiang Street, at the intersection with Donghuamen Street. The East Imperial City Wall was built in the 18th year of Yongle in Ming Dynasty (1420). It was originally on the west side of the Yu He River, and the river was outside the wall. In the seventh year of Xuande (1432), the Yu He River moved eastward and was enclosed in the wall. The city wall faces the East Gate of the Forbidden City, facing the East Gate, with seven layers of yellow glazed tiles resting on the top of the mountain.
Mennei (west) is a stone arch bridge across the Yu He River. Because officials entered the palace from Dong 'anmen when they went to court, it is commonly known as Wang 'en Bridge or Huangen Bridge. Qiaoxi was originally Dong 'anmen in Yongle period, but it was changed to Sanmen in Xuande period, commonly known as Dong 'anmen. There is a wall on Wang En Bridge, which connects two doors into one.
19 12 Yuan Shikai became the president to resist the southward movement, manipulated the mutiny of Beiyang Army, and the Donganmen was burned. 1926- 1927, the internal affairs office of Beiyang government demolished and sold the imperial city wall, and Dong 'anmen was also demolished. According to records, there used to be Zhenwu Temple on the bridge, which was later demolished and moved to the northwest of the bridge. After the East Imperial City was demolished, the Yu He River was gradually filled into a road, namely, the south and north riverside streets, and houses were built between the streets and the walls of the Imperial City to form a block, with the East Imperial City Root Street in the east.
4.Xi 'anmen
Beijing Xi 'anmen. Located in the middle of Xicheng District. Built in the fifteenth year of Yongle in Ming Dynasty. There is no city platform, and the door seat is a blue white stone red wall; Yellow glazed tile roof, single eaves resting on the top of the mountain; It is seven rooms wide and three rooms deep, and there are doors between the middle, left and right times, each with 1 pair of red painted gold nail doors; The duty room crosses the left and right sides and ends. In the Republic of China, the walls on both sides were torn down.
1950 was destroyed by fire, and Nanmu model survived. Around the original city gate, there are cultural relics such as the former site of Beiping origin, Xishiku church and Li.
Reference source: Baidu Encyclopedia-Beijing City Gate