Introduction to the crossbow platform: The location of Mingjiao Temple is the former site of the crossbow platform. The Crossbow Platform is a military fortress built by Cao Cao. It has a steep foundation and looks like a castle. It can not only protect the security of Hefei City, but also be used to train crossbowmen to repel Soochow. During the Three Kingdoms period, Hefei was under the jurisdiction of Cao Cao. He came to Hefei many times to deploy wars against Sun Quan of Wu. There are many pine trees planted beside the teaching crossbow platform. When the breeze blows, the pine waves burst into waves. "Jiaonu pine shade" was one of the eight scenic spots in Luzhou in the past, and "Tingsong Pavilion" got its name from this.