In Nanjing, the most storytable city gate is the Zhonghua Gate. There are three cities in the Zhonghuamen Castle, four arches and 27 Tibetan soldiers. In the ancient wars, it played a very important role in the material reserve and the design of the military source, and enjoyed the title of the first city in the world. This time I came back here and stepped on the bricks that have been vicissitudes for more than 600 years. I heard many stories about Zhu Yuanzhang, Shen Wansan and the cornucopia buried under the wall. It feels particularly interesting and interesting. Moreover, the story of Shen Sanwan has also been filmed into some film and television dramas, showing how legendary the story of the "God of Wealth" is.