Introduction to the Liao Family Official Hall: Exhibition hall No. 8 is the Liao Family Official Hall, which was built in the Ming Dynasty. The existing building has a group of three entrances, namely the lower hall, the middle hall and the upper hall, connected by a courtyard. The official hall is a hanging mountain-style building with a gentle roof slope and rough materials. The diameter of the golden pillars in the upper hall is 80 centimeters. Dougongs are used in many places in the building, and moon beam-shaped piercing beams are used. The pillar foundations of the middle hall and the upper hall are thick and simple.