Beihai Park is the earliest and best-preserved royal garden in China. The Nine Dragon Wall is about 26 meters long, about 6 meters high and about 1.5 meters wide.
Dragons of different shapes can be found on the main ridge, vertical ridge, tube tiles, long vertical ridges, etc. of the majestic Nine Dragon wall. The nine dragons on the wall are the rising dragon climbing between the sea of clouds and the rising dragons diving back. The body is divided into five panels, and the design and decoration contain the "Nine-Five Number"