Introduction to Shen Wansan Exhibition Hall: Shen Wansan Exhibition Hall is located next to the Zhonghuamen Castle. It is a building imitating the Ming and Qing Dynasties. Shen Wansan, a famous rich man named Zhongrong, was the richest man in Jiangnan in the early Ming Dynasty. The story of his funding of the construction of Nanjing City is widely circulated among the people, and he is a legendary historical figure.