Introduction to the Blood Sacrifice Xuanyuan Pavilion: The Blood Sacrifice Xuanyuan Pavilion is located in the middle of the lake. It has a flying pavilion with flowing elixirs, yellow glazed tiles, flower beams and red pillars. It is to commemorate the heroic spirit of Zhou Wenyong and Chen Tiejun in "The Wedding on the Execution Ground". And build. There is an inscription by Comrade Dong Biwu.