Buchenwald Concentration Camp - Tattoed human skin showing a knight fighting dragons. The skin was cut from bodies of dead inmates and tanned. It was used as evidence in Nazi war crimes trials. The camp had been liberated by soldiers of the 6th Armored Division of the U.S. Third Army on April 11, 1945. It was described as 'the worst concentration camp yet to be uncovered by west wall troops.' (6th Armored Division newspaper 'Armored Attacker'?. Liberated prisoners had killed guards already before arrival of the Americans. Germany. Date: April 15,1945