Introduction to brick carvings: In the courtyard of the East Mansion, there are pavilions and pavilions connected to each other, with carved beams and painted buildings. It is magnificent. The 189 large and small brick carvings are all the work of the famous artist Chengyuan Chengyuan and his disciples. Each of the patterns has its own characteristics. It can be called the Grand View Garden of brick carving art. There are symmetrical peony vases on the east and west doors, imitating the characteristics of cloisonné, using a combination of carving and hollowing techniques, which are meticulously carved and very lifelike. It is also known as the "Double-grade Wealth Gate" and "Double-grade Peony Gate", implying that Ma Buqing was a second-grade official at that time. It also implies that entering this gate means stepping into the official residence of a second-grade official.