Introduction to Shi Yunxuan Academy: The Chang family owns the largest academy among Chinese folk houses, called "Shi Yunxuan Academy". The academy is located in the middle of Beichang Back Street. It is a garden-style building and is the home of the Chang family's poems and paintings. , a library school that cultivates sentiments and cultivates the noble family. The academy is composed of three parts: the east and west courtyards and the main building on the front. Although it is divided into three courtyards. On the whole, it is connected as one. The front yard consists of four pavilions and three corridors. The east corridor is "Tingyulou Fa Tie", the west corridor is "Changshi Guimo Fa Tie", and the front corridor is "Shiyunxuan Fa Tie", all of which are treasures of Chinese calligraphy art. Behind Shi Yunxuan's dharma calligraphy are the forty-four emperors and empresses of Yubi Pavilion, all of which have extremely high artistic taste and cultural relic value.