Introduction to Shengshi Gate: Shengshi Gate was first built in the 13th year of Yongle in the Ming Dynasty (1415), with three rooms. During the Hongzhi period, it was expanded to five rooms with three arches, a green tiled mountain top, and is surrounded by dark red walls. Inside, there are apricot-yellow walls, and there are dragons carved in stone on the front and back stone steps. Looking inside from the arch, one has a sense of depth and unpredictability.