Introduction to Youjunzhai: Youjunzhai is located on the "top of Pingshan Mountain" in Youzhai, more than 400 meters east of Heifengkou. It is a military camp-style building, consisting of a large shed and a camp gate, with a construction area of 233 square meters. There is an arena in the village. It is said that heroes had to show off their skills here to determine their ranking.