A side trip west of Frankfurt, Old Limburg, is a charming medieval town. We parked our car below Woolworth in Old Town parking garage and started from there.
I love Cobblestone and timber-framed homes, (Fachwerk), which is abundant. There is so much architectural detail and history. Note, the oldest Home, the Werner Singer House is built in 1289!
We were there late August, I heard the Christmas Market in early December is worth a visit too. Enjoyed shopping and sitting at outdoor restaurants or cafes. Take a walk up to the Dom or cathedral, you need to be good on foot though. Limburg is a real historic Gem.