Dunhuang is a relatively small city in northern Dunhuang, located in an oasis of the Gobi desert at the historic junction of the northern and southern Silk Roads. It was made a prefecture in 117 BC by emperor Han Wudi and was a major point of interchange between China and the outside world during the Han and Tang dynasties.
Dunhuang is a surprisingly clean city with almost clean blue skies (a rarity in China) and a relatively highly developed city centre. Tourism plays a major role in Dunhaung's economy and the city has a good tourist infrastructure with many hotels. Tourist attractions include the dunes of the Gobi desert and the Mogao caves with murals painted on the walls.