The photo shows a prison cell in the Xifeng Concentration Camp in Xifeng County, southwest China's Guizhou Province. The concentration camp was used by the Kuomintang government to put Communists and patriots in jail from 1938 to 1946. [Photo: CRIENGLISH.com / Wang Wei]

The photo shows a wooden cage in the Xifeng Concentration Camp in Xifeng County, southwest China's Guizhou Province. Communists and patriots in the concentration camp were forced to enter the wooden cage when they were out for exercise. [Photo: CRIENGLISH.com / Wang Wei]

The photo shows the handcuffs on the wall in the Xifeng Concentration Camp in Xifeng County, southwest China's Guizhou Province. The concentration camp was used by the Kuomintang government to put Communists and patriots in jail from 1938 to 1946. [Photo: CRIENGLISH.com / Wang Wei]

The photo shows the Cat Cave in the Xifeng Concentration Camp in Xifeng County, southwest China's Guizhou Province. It is a natural rock cave used to torture the Communists and patriots for confession. [Photo: CRIENGLISH.com / Wang Wei]