The Colombus Zoo and Aquarium, Arguably the best zoo in America. Has over 7,000 animals, a water park attached, Discovery Reef, and a 100,000 gallon salt water aquarium. They offer many different shows and events and many places to stay near by. Plus affordable prices. I loveeee animals, so i must plan a trip around this zoo one day.
The Cincinnati Zoo Festival of Lights is incredible- over 2 million Christmas lights! See a spectacular light show set to Christmas carols with a large Christmas tree in the middle of swan lake. If you're in Ohio- it's a must see!
Top things to do with kids in Columbus, Ohio, include the State Historical Farm and the Columbus Zoo. See the complete list: http://www.midwestliving.com/blog/travel/top-10-things-to-do-with-kids-columbus/