Jiayuguan City

 Jiayuguan is a prefecture-level city in Gansu, China, with a population of 231,853 as of 2010. It is most famous for the nearby Jiayu Pass, the largest and most intact pass of the Great Wall of China. The Jiayuguan City is a city built near the Jiayuguan Pass. In ancient times, many inns were built near the pass. Gradually, more and more people decided to stay there for business and Jiayuguan City was built.