The city of Yangzhou is inextricably linked to salt. Since the Tang and Song Dynasties, Yangzhou has been in the southeastern metropolis because of its location in the water and land transportation hub. It has gradually developed into a cosmopolitan city in the southeast. The city has prospered for thousands of years, especially in the Ming and Qing Dynasties. Since the rise of the salt industry, Yangzhou City has developed into its history. The most prosperous period. The prosperity of the millennium, it is hard to imagine today. After all, it is too long, and there are not many remains left, but the old houses of Yangzhou Ancient Streets in the Ming and Qing Dynasties have preserved some. Dingjiawan in Nancheng can be said to be the best preserved ancient street in Yangzhou City. Dingjiawan is close to the famous Heyuan Garden. It is about 200 meters from the entrance of Heyuan Gate, which is Dingjiawan. The current Dingjiawan is far from the prosperity of the Qing Dynasty. It is an old street in the middle of the city. The twists and turns and narrow streets are the taste of the old Yangzhou City. The old houses in Yangzhou are all in the style of blue bricks and tiles. This street in Dingjiawan can be said to be the most characteristic old street in Yangzhou City. The streets and lanes present a large "D" shape. Streets and narrow lanes do not come in cars, bicycles, motorcycles are the most common means of transportation. If you don't come to Dingjiawan during commute time, almost no one in the alley can see it. Most of these brick and tile walls are houses of salt merchants during the Qing Dynasty. Through the high walls, you can also feel the extravagance of the wealthy Yangzhou salt merchants in those years.