 Rock City is a big path way on top of Look Out Mountain. Different from Ruby Falls it is a do it yourself walk and explore kind of place. Another difference is that Rock City is almost completely outside except for the exception of the few tunnels you go through. Rock City also has a bigger waterfall going of the side of Lovers Leap. |  Ruby Falls Is all inside a cave. You are led by a tour guide through a cave that has a lot of lights and is made for tourists to walk in. Another difference is that Ruby Falls is a long walk to one open room and everyone stays together as one big group. One other difference is that at one point 1,000 ft under ground, not on top of it. |
