Hi Stacymarie! We always drive from northeastern Illinois (near Chicago) down to FL. We all enjoy traveling through the Smokey Mountains. On the way down we tend to want to hurry up and get there so we try and stop as little as possible. I love going through Springfield but since you are probably near there it must be no big deal to you.
But on the way back we take it a bit slower. We've spent a couple days in Chattanooga which was really cool. We did the Chattanooga choo-choo, and saw some of the hisorical sites there. We also did the aquarium which was pretty neat. I don't know of any parks or quick touristy things but there a handful of things I look forward to seeing.
1. Smoky mountains - just seeing them and driving through them is pretty cool.
2. Jack Daniels Whisky tours in Tennessee.
2. In Atlanta when you are on the interstate there is an airport, (I'm guessing it's the ATL airport?). The planes fly REALLY low to the ground, and it's almost like they are flying right along side you as you are driving. It's very cool to see!
3. We always stop at the FL rest stop right when you cross the boarder. Sort of a tradition. it's a very nice big place.
4. There is a big corporate building, either right at the end of Georgia or beginning of FL that flies the confederate flag. I always thought that was really unique and try and look for it every time we drive by it.
Good Luck and have fun!!