Introduction to the ruins: On the underground floor, a rammed earth wall ruins from the Jiankang Palace of the Six Dynasties lies in front of the audience intact. The Six Dynasties rammed earth wall ruins area covers an area of ​​nearly 260 square meters. In order to keep this cultural relic unscathed, more than 100 large pillars were set up around it during construction as underground guardrails for the ruins. Now these pillars have been turned into walls, silently protecting this precious "foundation" of the ancient city.