Introduction to Tongtian Tower: The main building in the main courtyard is a three-story, five-room building, commonly known as "Tongtian Tower". Its frame is composed of twenty-eight sky-reaching pillars. The doors, windows, partitions, and handrails are all finely carved woodcarvings. They are engraved with peonies, pomegranates, and various flowers and plants. In particular, the pair of unicorns on the eaves of the courtyard are lifelike and lifelike. The moving and magnificent classical architecture is decorated with exquisite woodcut patterns, making the entire building appear more gorgeous and resplendent.