Have you ever seen a ghost? If the answer is yes, then maybe you won’t be that shocked at the below 15 photographs. If the answer is no, then maybe this post will have you questioning your views on paranormal activity. Of course, ghosts, spirits and other paranormal beings have existed in our culture (if not in reality) for many thousands of years. Yet it is only relatively recently that photography has made it possible to capture them in an image and share them with the world. What do you think? Fact, or fiction? Take a look at some of the most famous ghost pictures in the world and you can decide!