Mogao Grottoes ( Dunhuang Caves ) commonly known as the thousand Buddha Caves, known as the twentieth Century the most valuable cultural discovery, is located in the western end of Hexi Corridor, Dunhuang, is famous for its exquisite murals and statues. It was built in sixteen countries qianqin period, after sixteen countries, the Northern Dynasties, Sui, Tang, Five Dynasties, Western Xia, Yuan Dynasties such as the construction, forming a huge scale, the existing 735 caves, murals of 45000 square meters, muddy Caisu 2415, is the most abundant largest, the world Buddhist art the Holy land. The discovery in the cave, there are more than 5 pieces of ancient cultural relics, resulting in devoted to the study of classics and cangjing Dong Dunhuang arts disciplines -- Dunhuang. In 1961, was announced as the first batch of national key cultural relics protection units. In 1987, was listed as world cultural heritage