Yude Building is now famous, he has some names called apron building, why is this? ...Entering Yude Building, I learned that it was different from other Tulous, only half of the room, an old man living in the building told me that Yude Building was also a round Tulou, and then because of the fire half of the room burned out, only to have this unique apron building. Next to Yude Building is Qingguang Building, a square earth building, earth building was originally square, and later evolved into a variety of shapes such as round, oval, pentagon, hexagonal and so on.