Introduction to Building No. 3: Building No. 3 was built in 1930 with a brick and wood structure and a construction area of ​​1,846 square meters. The roof structure is opposite to that of Building 1. The middle is three stories high, with the top of the hilltop; the two wings are three stories high, with the top of the verandah. Symmetrical. The smoke-colored tube tile roof is decorated with auspicious animals on the ridge eaves, and the eaves beams and beams are painted. There is a fireplace chimney on the roof, and the upper part of the chimney is made into a palace-style roof. Buildings 1 and 3 both have a mezzanine-style layout inside, with guest rooms with separate bathrooms on both sides, which are where VIPs are accommodated.