Nine Dragon Screen in Datong was built in 1771 during the reign of Qing Emperor QianLong. Until recently, there were altogether three Nine Dragon Screens in China. The oldest one is located this one in Datong city, Shanxi Province; The second one was built during the Ming Dynasty (1368-1644), and the third was built in Beihai Park during the Qing Dynasty (1644-1911), which is within walking distance from the Forbidden City. The Nine dragon screens are a special indication of social status in ancient China, only existed at imperial palaces and mansions of noble. Each detail of Nine Dragon screen is designed to reflect the strong power of emperors.