Depends on your the ages if you have kids but Game Galaxy is a must stop for arcade fans. I like the Smyrna location, it has more arcades and some awesome older pins along with a few moderns. The Antioch location still has most of the modern pins but I'm a classic fan so I liked what I saw at Smyrna better. Nashville has great food and everything you could think of to do. The aquarium is a must visit in Chattanooga. It's probably my favorite aquarium to visit, it's large so plan on a good chunk of a day there. Chattanooga has lots of outdoor hiking but also lots of culture and art. It's a really nice mid sized town. Pigeon Forge is more of a tourist trap then anything to me. Plenty to do and see but everything has a cheesy and overpriced feel to it. There is incredible hiking in the area though so when we go we stay just outside of Gatlinburg and usually buy groceries to save money on food and spend all of our time hiking in the park. My favorite place to eat when we do eat out is the smoky mountain brewery. Decent enough beer, but great pizza. The pancake pantry is also another popular stop but be warned that the line for it starts early and it's cash only.