Introduction to the former residence site: Mengxi Garden is the residence where Shen Kuo lived in his later years. In particular, "Mengxi Bi Tan" written by him in Mengxi Garden is a very valuable scientific work, in which the achievements in natural science reached the advanced level in the world at that time, and was called "a milestone in the history of Chinese science" by the world. ". There are translations in English, French, German, Italian, American, Japanese and other countries.