Chongqing Baigongguan 1939 was bought by Dai Li and transformed into a prison for persecuting revolutionaries. Then, in 1949, military agents slaughtered the revolutionaries detained here, and only 20 people escaped. Both Baifu and Zhazidong are called "two living coffins". Luo Shiwen, Radish Head Xu Xiaoxuan and other revolutionary martyrs have all been imprisoned. Now the Baigongguan Scenic Area is free to visit. Opening hours: 08:30~ 17:00.