01. Camp 22, North Korea Camp 22, North Korea — The notorious Hoeryong Concentration Camp, which has gained international attention in 2012 after its warden defected to China, was an isolated prison for political prisoners and has been in operation since 1965. A large compound that holds 50,000 prisoners, it was claimed that three generations of dissident families have been imprisoned there to completely remove the ‘roots.’ In addition, the death camp has subjected inmates to extreme torture and human experimentation where they become lab rats for biological weapons like anthrax, bomb testing, and other brutalities.