Just outside of Uniontown is a little known Pennsylvanian geological gem called Laurel Caverns, Pennsylvania’s largest cave. Family tours, rappelling, and spelunking tours deep into the caves are just some of the adventures offered at this spectacular natural wonder. Above ground, there is a gift shop and picnicking areas, as well as an observation deck that overlooks the valley. On a clear day, I hear you can see all the way to Pittsburgh. Just off US Route 40 at the top of Summit Mountain, it is a must see during a southwestern PA vacation or road trip.