If you were to compile a list of the most evil men in history, Heinrich Himmler would undoubtedly be near the top of it. Hitler’s chief executioner and the mastermind behind the genocidal concentration camps, Himmler was obsessed with racial superiority, the occult and killing people efficiently. With his round spectacles and devotion to Hitler, Himmler stopped at nothing to achieve his final solution. If you find the worst people that ever lived fascinating, you’ll enjoy this macabre episode.