Things to do along I 75 FL to ON

We are going to the FMC Rally in Perry GA (March 17-20) on our way home to Ontario from Florida on I 75. We don't want to go directly home as it will still be cold in Ontario. We have to be home by April 12 and will be spending about a week with family in Lima Ohio. That still leaves us some time to be tourists along the way. Any ideas for things along the way?