Introduction to the ruins of Keshan Tower: This tower stands high on the stone beam of the main peak. "Xi'an County Chronicle" written by Jiaqing of the Qing Dynasty records: "Build a tower on the top of the mountain, and you can see the county town from there. It is named the highest peak." The tower is named Keshan Tower, also known as the Wild Goose Tower. It is a seven-level brick tower.