In 1988, China's State Council declared Yancheng Ruins Park a national key cultural relics protection unit. The Yancheng Ruins Park is located on the western side of Yancheng Spring and Autumn Park. The park has thousands of years of history and built on the site of city in Chunqiu Dynasty. The park is comprised of three cities and three rivers with city walls that are separated into three layers. An aerial view reveals that the castle resembles a series of concentric rings. A visit to the Yancheng Ruins Park is best enjoyed during the autumn and spring when the vegetation is in full bloom. By walking through the ruins, you can learn about its history and cultural relics.