Without a doubt, Adolf Hitler is one of the most controversial and reviled personalities in world history and for good reasons. His beliefs, opinions and ideals dragged humanity to the brink of war, causing widespread death and destruction. Nevertheless, he is a defining characteristic (all be it a bad one) in the history of this planet and it would not harm us to learn what kind of personality would do the monstrous things Hitler did. Hopefully, by looking into the past and identifying the horrid blemish that Hitler was, hopefully we can prevent such a person from ever rising again. So here are 25 facts about Hitler that might take you by surprise.