Introduction to the Guiling Monument: In the middle of the Warring States Period in 353 BC, the State of Wei sent Pang Juan to attack the State of Zhao. The State of Zhao asked Qi for help, so the State of Qi sent Tian Ji and Sun Bin to rescue Zhao. The Qi army followed Sun Bin's plan of surrounding Wei and rescuing Zhao. , set up an ambush in Guiling (today's Peony Garden area of ​​Caozhou) and defeated Wei general Pang Juan, and Qi's reputation was greatly shaken. To commemorate this classic battle, a monument was erected at this site.