Jake L
Google
This museum is entirely free, and somewhat hidden away. Upon entering, collecting a free map will guide you around the ~10 exhibition rooms and few small gardens. There's lots of well written information about the town's history and traditions, most of it in English.
When we visited there did not seem to be any staff around, despite the clearly well maintained grounds. Regardless of your interest in the local history, there's enough peaceful places to rest quietly to make this worth a visit.