The Rock City tourist attraction is a gated area at the top of Lookout Mountain on the Tennessee / Georgia border. In 2019, the general admission was about 22USD and I think it is worth it. You can easily spend half a day walking around the well kept trails and taking in the views. There are several places to get food and small area of musical entertainment at times.

There is an option to buy a combination pass that includes a tour of Ruby Falls, which is a car ride part way down the mountain. I had enough photos of one of the attractions at Rock City so I made a separate page for the Fairyland Caverns section.