Distance from Nashville: 63 miles, one hour and 2 minutes
European settlers, most of whom never took AP history, often miscalled old structures “forts.” They were wrong. And archaeologists have dated the mysterious stone formation that gives the park its name at between 1,500 and 2,000 years old. The main hiking trail skirts the walls of this magnificent edifice, now thought to be a ceremonial gathering spot for ancient Native American tribes. Although the campsites are fairly luxurious with water and electrical hookups, grills, picnic tables, and paved pads, they are tucked deep into the woods to offer plenty of privacy. You’ll feel like you’re miles away from civilization, and when that inevitably scares you, you can take a short hike to the bath house or a ten minute drive to get some fast food.