I live about an hour South of Cincinnati. We really don't get there all that much. We've been to a couple of museums and the aquarium, but very few restaurants and markets. They are known for Cincinnati chili, terrible stuff. Loaded with cinnamon and served over spaghetti noodles with fistfulls of cheap, orange cheese piled on top.
One interesting market is Jungle Jim's. I spent a couple hours in there just wandering around. I did manage to spend a good amount of money while wondering though.
If you need some reconnaissance, let me know.