Central axis introduction: The middle area is the central axis of the government office. From south to north there are mainly the Yimen, the lobby and the second hall. Behind it are the residences of the prefect and his family. There are six departments on both sides of the lobby. There are eight stone palace lanterns on both sides of the official road, which means justice and brightness. There is a sundial on the left side of the platform and a Jialiang on the right side. There are also eight water tanks, which were essential tools for ancient government offices and wealthy families to prevent fires.