http://www.burg-breuberg.de/Breuberg castle is in the middle of the Odenwald mountains and was started in 1150. It's one of the best preserved medieval castles in Germany sitting on top of a mountain overlooking the entire area. There is a (Youth) Hostel in the castle so you can stay over night. How to get there? www.bahn.de and as destination: Sandbach Bahnhof, Breuberg
Andreas, thanks for the info. The website you are referring to looks like a great website for info on youth hostels located throughout Germany that can accommodate families i.e., www.jugendherberge.de/. Thanks again.