The Potala Palace is included in the first important national cultural relics protection list. It is the world’s largest and most intact ancient castle-style complex located on the highest altitude. A grand stele and commemorating the architectural achievements of ancient Tibetans, the Potala Palace is truly a cultural treasure of the Chinese nation. In Dec. 1994, the UNESCO put the Potala Palace onto the World Cultural Heritage List. In 2001, the State Tourism Administration rated it as 4A tourism spot on the national level.