Dunhuang Mogao Caves are located in western China's Gansu Province. These caves were cut a cliff 25 kilometers southeast to Dunhuang, on a mount called Mingsha. Dunhuang Mogao Caves are regarded the biggest and the longest preserved Buddhist art treasures, with more than 46,000 square meters of frescoes in 735 caves. Dunhuang frescoes display Buddha's images and behaviour, and the relationship between Buddha and men. Dancing images in Dunhuang frescoes are a brilliant jewel for all human beings. Dunhuang Mogao Caves was on the World Heritage List in 1987.