Introduction to Wolong Taizhai: It is part of the Zhenghan Great Wall during the Spring and Autumn Period and the Warring States Period. The Zhenghan Great Wall starts from Wang Zongmiao, Cuimiao Town, Xingyang City, and ends at Xinzuo, Gongyi City, with a total length of 28 kilometers. During the Jiajing period of the Ming Dynasty, in order to resist the peasant uprising, such a walled city was built using the natural dangers here and the foundation of the original Great Wall. It is 1,695 meters long, 6 meters high, and has an average thickness of 2 meters. It not only preserves the parapets, blast holes, crenelations, etc. The style of the Great Wall still retains the charm of the ancient walled city. During the Anti-Japanese War, Commander Pi Dingjun also used the favorable location here to fight against the Japanese invaders.