Wing room introduction: The first entrance gatehouse. On the front facade, there are small eight-character polished brick structure and brick carvings on the forehead, with the four characters "Family Lun Yuexu" engraved on it. The second entrance hall is composed of the main hall and nine rooms and two corridors on the east and west mezzanines, with a width of 44.79 meters and a depth of 10.92 meters. After the third entrance, there are nine rooms and two corridors in the back building. The internal structure is of the style of lifting beams and buckets. The front facade has been renovated in the later period and has a strong Western style.