Mammoth Cave National Park, Mammoth Cave Cumberland Falls State Resort Park , Corbin It tops the adventure bucket list, but did you know Mammoth Cave National Park is also a certified International Dark Sky Park – THE place for stargazing? Glide into history on a boat tour of Lost River Cave , once an ancient hunting ground, hideout for bank bandit Jesse James and, unbelievably, a 1930s nightclub in Bowling Green. Inside the mountains, beneath the path pioneers took, Gap Cave at Cumberland Gap National Historical Park is a world of dripstone formations that descends 183 steps down. The Cumberland Falls moonbow, a lunar rainbow that glows like meteorological poetry, appears just once a month in the mist under a full moon. Columbus-Belmont State Park , Columbus 36 #TravelKY