Introduction to Prime Minister Cao's Mansion: Prime Minister Cao's Mansion was restored and rebuilt on the site of the original Cao Cao camp and his office, recreating Cao Cao's life in Xu more than 1,800 years ago. Prime Minister Cao's Mansion consists of three main buildings, namely the Yingxian Hall, which reflects Cao Cao's knowledge and employment of people, the Council Hall, which reflects his strategic planning, and the Poetry Building, which reflects his literary talent and life aspects.