Last Updated: August 3, 2026
Kentucky gave us two stops that have almost nothing in common except that both are underrated. Cumberland Falls throws a moonbow — a lunar rainbow — on clear nights around the full moon, and it is one of only two places on earth where that happens on a predictable schedule. Mammoth Cave is the longest cave system in the world by a very wide margin, and it is still getting longer every year as surveyors push further into it. Between the two of them we found the original Kentucky Fried Chicken and a Stonehenge in somebody’s front yard. From Pigeon Forge it was a straightforward run north.
