Yu Youren's Former Residence (Memorial Hall): Located at No. 5, Doukou Lane, Xiguan, Sanyuan County, Shaanxi Province, it was purchased by Yu Youren's father in Xinsan 1894 (20 years of Qing Guangxu), for Yu Youren to study poetry and study ancient and modern places. It is now a provincial-level key cultural relics protection unit.