Introduction to Jianshan Hall: Jianshan Hall is located on the west side of the lobby. It is a unique ruler-shaped building. It was the place where the descendants of the Meng family received and entertained guests at that time.
Outside the Moon Gate opposite Jianshan Hall, there is an exquisite Taihu stone. On it are engraved handwritten poems by Ruan Yuan, an epigrapher from the Qing Dynasty, and Kong Jishu, the calligrapher who owned the "Yuhong Tower", a descendant of Confucius.