The Shanghai Museum is one of the four major museums in China and features bronze, pottery, porcelain, calligraphy and painting. The building of the Shanghai Museum is very distinctive. Its base is square, and the top is round. This shape corresponds to ancient Chinese philosophy—The sky is round while the ground is flat. The Shanghai Museums essential positioning is the Museum of Ancient Chinese Art, and its collection, exhibition, and research focus on ancient Chinese artworks. The museum is divided into 11 art galleries and three exhibition halls. Eleven galleries cover most of the main categories of Chinese art: bronzes, ancient ceramics, paintings, calligraphy, ancient sculptures, ancient jade, coins, Ming and Qing furniture, seals and ethnic minorities.