Considering the Ihr Hotel Kronprinz in Bonn?
A VT member wrote the following comment about visiting Bonn:
Blankenburg by Lucky79
The town of Blankenburg is across the river and inland from Bonn, Germany. It has a wall with towers, a castle, and well kept surroundings. When I was there, I didn't see even one tour bus and the prices were reasonable in all the restaurants on the square If you walk to the northwest side you will find a gate through the wall, and a chance for some great photos including the church just beyond the wall. Just down from the gate is a drive through where cars have to take turns getting in and out. A short walk through to the east side and you will see the castle and tower. Climb the tower and get a terrific view of the valley below.