In fact, I saw it about 100 meters in Dongcang Hutong on Mashenmiao Street. There is an empty parking lot with a row of houses on both sides. One side is newly built and the other side is relatively old, but it has also been repaired. It is said that this Dongcang is the oldest and the best preserved. Granary warehouses still in use today. It's okay to have time to see, not particularly recommended.