At the intersection of history, nature and tourism sit the state’s plentiful caves and caverns, bearing age lines and scars of an ancient world. Whether you’re looking to hike along the ridge of the state’s own Grand Canyon or take a 25-story descent into the belly of Laurel Caverns, Pennsylvania’s wilderness beckons. Penn’s Cave & Wildlife Park is the only all-water cavern and wildlife park in the U.S., and the only cave in Pennsylvania on the National Register of Historic Places. 41 miles/1 hour | heinzhistorycenter.org/visit/meadowcroft/Laurel Caverns State ParkRecently designated as Pennsylvania’s newest state park, Lauren Caverns is among the largest calcareous sandstone caves in the world. Begin your trip at the Laurel Caverns Visitors’ Center, where you’ll be able to purchase tour tickets — there are no online purchasing options — receive an introduction to the park and access the caverns.