The original appearance of Ruzhou North Gate

The north gate wall is four feet high, with an urn (also known as the Moon City) and two eaves towers on the door. There are towers (battlements of city walls) on the outer edge. The north gate is only about 50 meters away from the western wall. There is a watchtower. In order to meet the needs of the war, several watchtowers were built on the wall of the north city. Around the city, there are horse paths that transmit information and orders to the sergeant guarding the city.