Puyu Road is also called Puyu Road, a national key cultural relics protection unit. It is one of the three roads under the jurisdiction of Jinshangjing Road. It was a major military town in the north during the Jin Dynasty. It was also the geographic coordinates of the northernmost border of my country at that time, which determined the territory of China at that time. The plane of the ancient city is elliptical, with a circumference of 3,000 meters. The city wall is built with rammed earth slabs, with 38 horse faces. There are only two north and south gates in the city, which correspond to the distance and are attached to the city. Puyu Road is located on the wetland along the Wuyuer River. When it rains, the surface outside the city is muddy, but the surface inside the city is very dry. This also shows that the ancient city of Puyu Road at that time must be There are better drainage facilities, but what is strange is that archaeologists have come to Puyu Road twice to excavate, and they have no use to find its drainage facilities. This can also be said to be a mystery left by Puyu Road to our descendants. In the end, Puyu Road was destroyed by the war of Yuan Dynasty.