I have a phobia of horses. Seriously, I love all the weird animals that people normally find scary, I will eagerly and happily pet a snake or tarantula but horses freak me the hell out. They're so big and I feel like they are going to hurt me. I live in a pretty big city where there are sometimes horse-driven cart tours and whenever I'm walking around downtown, I sometimes cross the street just to avoid the big Clydesdale type horses from getting near me. Once in middle school I was at my friend's house for a sleepover and she was watching this documentary about horse racing on TV where they showed a person falling off a horse, which then stomped on that person's leg, so I asked if we could please watch something else because it was upsetting me, she said "no" and then got offended when I asked if I could leave the room and wait for it to be over.
I also have... I don't know if I would call it a phobia, but I have a weird reaction to reading about cryptid stories, unsolved historical mysteries, and so on. Some examples of what I'm talking about would be the Voynich Manuscript, the "Bloop" sound, the Antikythera Mechanism (look these things up if you don't know what they are) or any unexplained "evidence" for things like alien life or ghosts. It's not really a phobia because I actually find this information fascinating, but it also makes me feel strangely sick and nervous, and for some reason I will start crying when thinking about it.