Introduction to Guifulanxiang: The inner and outer courtyards of Sanduotang have five bays, and there are five rooms on both sides. The courtyard is very wide, and the eaves, beams, rafters and other wooden structures are decorated with paintings. The brick carvings of lotus seed hanging flowers, wishful hanging flowers and hooked lotus characters with ten thousand characters, longevity and happiness are well preserved on the roof ridge. Looking through the hall to the inner courtyard, the base of the main building looms, giving a sense of strict hierarchy, reflecting the Cao family's rich and powerful official and businessman spirit. When the building was built, the Cao family was in its heyday, and you can see more or less the faces of Shanxi's wealthy businessmen.