Changshengdian is Huaqing Pool in Lintong District of Xi'an City. The Changsheng Palace is a place where seven emperors, Li Yuan, Taizong Li Shimin, Gaozong Li Zhi, Empress Wu Zetian, Zhongzong Li Xian, Ruizhong Li Dan and Laozi Li Er, emperor Xuanyuan, were sacrificed in Tang Dynasty. In 2005, Changsheng Palace was rebuilt as the cultural relics exhibition hall of Tanghua Qing Palace. After 2008, planning became the main performance venue of "Changheng Song".