Introduction to the ruins of Xuankou Middle School: All the school buildings of Xuankou Middle School sank and collapsed during the earthquake. Before the earthquake, the building was 5 stories. After the earthquake, the 5 stories were changed to 3 stories, and the 3rd floor was changed to the 1st floor. , the 1st and 2nd floors turned into debris. During the post-disaster reconstruction, in order to remember and preserve this period of history, the ruins of Xuankou Middle School were preserved intact as a relic. It was the only large-scale relic that was relatively completely preserved during the earthquake, and was also the center of the 2009 "5.12" Wenchuan Earthquake. Anniversary memorial ceremony venue.