The national, historical city of Dunhuang is a renowned tourist city famous for the Mogao Caves. It is situated in the common boundary of Gansu Province, Qinghai Province and Xinjiang Province. Dunhuang, long ago referred to as 'Sha Zhou' (beautiful desert oasis), was the hub of middle and eastern silk routes in ancient times. The city landmark is an attractive statue, the idea of which comes from the mural in Mogao Caves, a shrine to the culture and arts of Dunhuang. From Mt.Qilian in the south, Mt. Mazong in the north and desert from east to west, the landform of Dunhuang City is a declining basin-plain from west to northeast, high in the north and south, and low in the middle. The western cities of China, especially those in the desert, are known for their sandstorms, so tourists should protect themselves with glasses, hats and gauze kerchiefs, etc.