The Ancient World National Nature Reserve is located in the norhtern of Ji Country Tianjin, from Ji County to the eastern of Huangyaguan Road, is the first national nature reserve in our country. The form of the standard section of the Ancient Would is 1.8 billion to 800 million. It is start to Changzhou Village of the northeastern of the Town, along the northeast to southwest direction of layer upon layer complex, until the Fujun Mountain, about 24 kilometers long from southnorth, the eastern and western averages about 350 meters wide. The strata complete, exposed continuous, and in good keep, and it is full of fossil specimens. The national nature reserve becomes display hall.

In the reserve, it is overlapping hills, beautiful scenery. In the norhtern, there is Huangyaguan Great Wall winding ups and downs; in the southern, is fishing ancient capital; in the western, is the first mountain of Jingdong - Panshan Mountain; in the eastern, that are Eastern Qing Tombs and old-fashioned square table for eight people. It is the good place for tourism.