The whole building is designed for three floors. The ground floor is said to be a secret underground passage to Langshan. The outer wall is made of special technology. It looks uneven and rugged. The thickness of the building is up to 60 cm. The roof is in the shape of a Chinese zigzag. There is also a large platform on the top. There are not many windows on the first floor, which makes it easy to conceal, while many windows are installed in every room on the second floor, besides observing the surrounding environment. But many stories about this building do not have the actual data to prove it. They can be said to be rumors or gossip.