Introduction to the Huiluan Monument: There is a courtyard with red walls and gray tiles 400 meters west of the fourth archway. The three words "Huiluan Monument" are written on the plaque at the door. "Huiluan Stele" is also called "Khitan Departure Stele". The inscription on the stele is a poem "Khitan Departure" written by Zhenzong of the Song Dynasty. It is said that it was written by Zhenzong himself.