Decker's Chapel is a tiny roadside chapel built in 1856 after Michael Decker, injured in a fall, vowed to build and maintain a chapel if he recovered. The building is often described locally as one of the smallest churches in the United States.
It takes only a few minutes to see, but it has the kind of particular story that makes small-town travel worthwhile. Combine it with the brewery and historical society rather than making it a separate trip.