Laoximen Historic District: Located in the north of Laoximen, the key protected area starts from Shunshui South Road in the east, reaches the west bridge head of Liu Pu Bridge in the west, reaches the south side of Laoximen Road in the south, and reaches the south edge of Shanxi New Village in the north, including the traditional houses on both sides of Liu Pu Bridge and the west moat, with an area of 2. 12 hectares. The traditional style coordination area starts from Shunshui South Road in the east, 50 meters west of Liu Pu Bridge in the west, 20- 100 meters south of Laoximen Road in the south and Shanxi New Village in the north, covering an area of 3.3 hectares.