Guanshan Academy, located in the southwest of Hougou village, Guanshan town, Pingding county, appealed to scholars of all dynasties. Lv Sicheng, the premier of the Yuan Dynasty, and Qiao Yu, the Minister of Military Affairs of the Ming Dynasty, both studied there. It was also home to Fu Shan, a patriot in the late Ming and early Qing Dynasties. All of them have written immortal poems there. Among all poems, Qiao Yu's Poem Tablet and Xuanmi Tower Five-Character Poem Stone Carvings are the most famous.