Introduction to Qingyuan Building: The main exhibition hall of Tang Xianzu Memorial Hall, Qingyuan Building, is a two-story pavilion imitating Ming Dynasty architecture. The first floor is the exhibition hall, which displays Tang Xianzu's upright life and his "Four Dreams of Linchuan" that have been passed down through the ages through paintings, photos and other forms; the second floor is the drama stage - the Four Dreams Stage.