Excuse me, what is Wengcheng? Can you introduce it with pictures?

Wengcheng wngchng explains the small towns outside the big cities, which is used to strengthen the defense of small towns outside the gates of England; Supplement to the paddock outside the city: Wengcheng is one of the main defense facilities in the ancient city. Build a small town outside the city gate, with the same height as a big city and a round or square shape. Round as an urn, it is called an urn; Fang is also called Fangcheng. The urn is located on the side, thus enhancing the defense ability. At present, it is found that earlier barbiturates were set in the gates of Koguryo Six Cities, which were more common in Liao Dynasty and other cities. During the reign of Zhao Xuan in the Western Han Dynasty, there was an arc wall outside the house of Houguan in Jiaqu, Juyan, Gansu Province, which was probably the prototype of the urn. Wengcheng, also known as Yuecheng and Quchi, is an accessory building attached to the city gate and connected with the city wall in ancient cities. Most of them are semi-circular, and a few are square or rectangular. When the enemy enters the urn, if the main door and the urn door are closed, the defenders can catch the turtle in the urn. Before the Ming City Wall was built in Nanjing, the traditional standard of China Wengcheng was to set it outside the main entrance. Contrary to the old system, Nanjing City Wall set up an urn hole at the gate and a revolutionary urn hole (hidden soldier hole) on the city wall, which greatly strengthened the defense ability of the city gate. All the doors in Beijing 13 are inner wengcheng, with Sanshanmen, Tongji Gate (no longer exists) and Jubaomen (now called Zhonghua Gate) far exceeding other doors in scale and momentum. Zhonghua Gate, located in the south of the city, was originally the south gate of Nantang Capital. Rebuilt in Ming Dynasty, it reaches Tongjimen in the east and Sanshanmen in the west, with a total length of 3 178 meters and a stack of 1202. The well-preserved Zhonghua Gate Castle has four walls and 27 hidden soldier caves, of which the outermost layer has three watchtowers, three on the left and three on the right, and the second layer has seven foundations, the largest of which has an internal area of 365,438+00 square meters. These caves are usually used to store military supplies and can store more than 3,000 soldiers in wartime. Some experts believe that the setting of the inner urn not only strengthens the defense of the city gate, but also acts as a state-owned weapon for designers and builders, which is not a concentrated expression of human Taoist thought.

The ancient city wall is not one story, but at least two stories. The area formed between the outermost wall and the inner city is the urn! Weng Zhu is mainly a military facility, and its specific function is the same as catching turtles in a jar! T find the picture, but you can watch TV. Sung River attacked Fang La, and the place where he died was Wengcheng in Hangzhou, and the place where Kangxi Dynasty and Zhou Peigong practiced slavery was also Wengcheng!