Introduction to Anmen Square: Anmen is one of the three gates on the south wall of Han Chang'an City, with Xi'an Gate to the west and Covering Gate to the east. The Anmen Shengshi area is the main entrance to the southern end of the Hancheng Lake Scenic Area, which is located in Han Chang'an The main south gate of the city is the location of Anmen. Anmen is one of the symbols of Chang'an City. In order to show the strength of the Han Dynasty, it was named "Anmen Prosperity".