1. First take Nanjing Metro 1 line at Xinjiekou subway station. Xinjiekou subway station has 16 exits. Choose the nearest exit to enter the subway station according to your location.

2. Take the subway 1 line "Zhonghua Gate" train. It should be noted that Nanjing Metro 1 Line is divided into two directions: "Nanjing South Station" and "Zhonghua Gate". Please make sure to go in the right direction.

3. After about 4 stops, arrive at the "Zhonghua Gate" station. After getting off at Zhonghua Gate Station, find the exit according to the guide signs in the station.

4. After leaving the station, you can walk about 550 meters to the old doorway.