[tevake]

A walk on the city wall gives a nice overview of the city.
If you were heading north I would suggest a stop in at Coberg Castle. They have an amazing arsenal there housing weapons from the middle ages thru to the mid 20th century. A fantastic look at how each new development in weapon technology generated new types of defense, etc.

Wurtzberg district was once ruled by various Prince/bishops that were early family members of my wife's family. Von Bibra is the name, you can see many mentions of the family at the castle in Wurtzberg. One named Conrad in the early 17 hundreds looks very much like my FIL also named Conrad, He is practically a neighbor of yours living in South Pasadena.
We will be in the general area ourselves at that time, staying at Brennhausen, a family place there. Goggle it to see if you will be close enough to stop in for a visit.

Cheers Richard