Introduction to Qingyunxuan: Built during the Tongzhi period of the Qing Dynasty, it is a library, also called a convenience hall, in the overall residential complex of Xidi Village. It has a history of 130 years. The whole structure is similar to a courtyard, with the convenience hall in the middle, a second-floor structure, bungalows on both sides, surrounding a small courtyard, and a pavilion at the entrance of the courtyard facing the lane. In the rectangular courtyard, there are stone flower terraces and rockery bonsais arranged in an orderly manner. The fossil of half a large sea clam displayed in it has a history of more than 100 million years.