There are two markets outside the city of Guo, the East Market (called metropolis in Sui Dynasty) and the West Market (called Liren City in Sui Dynasty), each occupying two squares. The two cities are almost the same size, with a length of1025m from north to south and a width of 927m from east to west. The market has a wall with eight doors, and there are streets and streets along the wall, which divide the city into nine districts. Every district is surrounded by streets, and there are shops, restaurants, jewelry stores and handicraft workshops along the streets. Most of Chang 'an's businesses are concentrated in these two markets, and other workshops also have some scattered commercial facilities.