I have a lot of interests, architecture, especially Frank Lloyd Wright, the practice of medicine and its history, certain parts of the paranormal (I love a good ghost story) History, especially the Victorian Age, the "Sense and Sensibility- Pride and Prejudice" (Mr. Darcy!) age and parts of the Renaissance, abnormal psychology, the Beatles and the other English Invasion bands of the 60s, the entire hippy movement.
I don't think anyone would be surprised or would think it was weird. I've long ago given up bringing things up in certain company just to try to impress people with my oddities. Everyone seems to have odd interests. Most people are more interesting than they look at first glance.