The palaces are all symmetrical to form a solemn, neat and stable pattern, forming a complex building center hall and four corners.
Miyagi and Imperial City live in the center of the north of the city, symmetrical according to the central axis, and orderly from master to slave, fully demonstrating the spiritual function of imperial power.
The road runs through the east and west, winding from north to south, horizontal and vertical. The main roads are symmetrical south, north street and east and west street. The center of the four roads is the famous Xi 'an Bell Tower. Highlight the momentum of the world center extending in all directions and the norms of urban construction. There are countless symmetrical small streets, paths and alleys, such as Dongxin Street and Xixin Street. Nanxin Street and Beixin Street; West Bangzicheng Street and East Bangzicheng Street; Dongyi Road and Yi Xi Road; Dongba Road and Xiba Road; Huangcheng West Road and Huangcheng East Road; Shuncheng South Road and Shuncheng North Road; Ring east, west, south and north roads; Nanliu Lane and Beiliu Lane; North Madao Lane, South Madao Lane and so on.
There are twelve gates on the city wall, and the main entrance is the south, north, east and west gate with the city wall as the symmetry axis. Highlight the kingly demeanor of the ancient capital of the 13th Dynasty. There are many similar symmetrical doors, such as Nanshaomen and Beishaomen. South Gate and North Gate; South Yard Gate and North Yard Gate; Dongyang City and Xiyang City; Dongmutou City, Ximutou City and so on.