The mansion of Du Wenxiu is also known as the Forbidden City. It is inside the South Gate of ancient city of Dali. The mansion was built on the site of the former residence of the provincial military commander of the Qing Dynasty. The thick-walled mansion has carved eaves and yellow tiles. It has an earthen fortification, and this is why the mansion is also called the Forbidden City. It occupies an area of 55,000 square meters and is one kilometer in circumference. It is composed of the Wumen Gate, Front Hall, Main Hall, Tianzi Terrace, Main Palace, Side Halls, Rear Palace and Flower Hall. All the halls are magnificent, with painted and carved beams and eaves.