Guozijian is located in Guozijian Street (formerly Chengxian Street) in Andingmen, Dongcheng District, Beijing. The ancient Huaijiao Road on both sides of the street is adjacent to the Confucian Temple and Yonghe Palace. In 2004, the Confucian Temple and the National Inspection Museum opened, reflecting the regulation of the ancient "Zuo Miao Youxue". It is the highest administrative institution and the highest academic institution established by the state in the Yuan, Ming and Qing dynasties, also known as "Taixue" "Guoxue". Guozijian was built from Yuan Dynasty to Yuan 24 (1287 AD). Yongle in Ming Dynasty was renovated and expanded on a large scale during the orthodox years. In 48 years of Qianlong in Qing Dynasty, a group of royal buildings "Piyong" was built to form the present regulations. At the time of the Reform Movement of 1898, schools were built, imperial examinations were abolished and the Imperial College was suspended. Piyong is the central building of Zijian, one of the six palaces in Beijing. Piyong is the only ancient "school of the emperor" in China. It is the place where emperor Linyong lectures. Its architectural style is unique. It is a square temple with a steep roof, surrounded by green water in Yuanchi, four stone bridges can reach four Yongmen, forming the system of "Piyong water". Yu Tian-tian-tian-tian-tian-yuan, the meaning of missionary and enlightenment, the temple paints the ceiling with color, sets up dragon chairs, dragon screen and other royal instruments for the emperor "Linyong" to lecture. In ancient times, students studying in the Imperial College were called "supervisors". The whole building of Guozijian is situated in the north and south facing the courtyard, with Jixian Gate (gate), Taixuemen (second gate), Liuli archway (front and back banners engraved with "Yuanqiao Jiaoze", "Xuehai Festival View", all of which are imperial letters of Emperor Qianlong), Yongdian Hall, Yilun Hall, Jingyi Pavilion, the east side of the front courtyard is connected with the Confucian Temple, the Confucian Temple is also known as "the ancestor temple", which is the place of Royal Sacrifice to Confucius. The buildings are the first Shimen Gate, the Dacheng Gate, the Dacheng Hall and the Chongsheng Temple, with 198 Tongyuan, Ming and Qing Dynasty Jinshi inscriptions on both sides. After more than 700 years, the main building of Guozijian is still well preserved, which is the only site of the highest ancient university. Guozijian is famous for its long history, unique architectural style and profound cultural connotation.