Guojia Courtyard is located at the intersection of Zijingshan Road and Shuyuan Street,No. 1 12, adjacent to the south wall of Zhengzhou Mall site. It is the "last quadrangle in Zhengzhou" and now it is a part of the "Book Garden Friends and Harmony" garden. The quadrangle has blue brick walls in the east and south, and red bricks in the north, which were newly connected later. The old house is covered with gray tiles and cornices. The famous house above the wooden door was built in the 21st year of the Republic of China (1932).