Xian is the capital of ShaanxiProvince. It has a population of almost 3 million, and is divided into six districts and counties. Its long and illustrious history has made it one of the most popular tourist destinations in the world. Xian was the first capital of united China under Qin Shi Huang in the 3rd century BC, and the starting point of the Silk Road. It survived as a central Chinese city dynasty after dynasty, leaving it with thousands of cultural relics.