Guozijian (Imperial College), located on Guozijian Street in Beijing, China, was China's national university during the Yuan, Ming and Qing dynasties, and the last Guozijian of China. Most of the Beijing Guozijian's buildings were built during the Ming Dynasty and it remains an important heritage site in China. The Guozijian was shut down in 1905. The Guozijian was first built in 1306 during the 24th year of Zhiyuan Reign of the Yuan Dynasty, and was reconstructed and renovated on a large scale during Yongle and Zhengtong reigns of the Ming Dynasty.