We all may have had those moments we can't get out of our heads. If we're lucky enough, most of them are good memories shared with friends and family. But there are those ones that haunt us forever. Imagine capturing all those moments in your head and letting the whole world see them. Well, that's exactly what's happening in the 18 photographs in this list, they all have such tragic histories. Is this the curse or beauty of photography, you decide yourself!