📍ADD this to your PA roadtrip list!I quite literally stumbled upon this historic gem and am so glad I did because it’s not only so cool, but the park around it is gorgeous. Most people have no idea the oldest transportation tunnel in the U.S. is hiding in Lebanon, PA. Hand-dug in 1827, the Union Canal Tunnel once carried boats between the Susquehanna and Schuylkill Rivers. Now it’s a hauntingly quiet piece of overlooked PA history.Where should I venture next? 👀 Be sure to follow me @pennsylvan