Considering the Hotel Krupp in Bad Neuenahr-Ahrweiler?
A VT member wrote the following comment about visiting Bad Neuenahr-Ahrweiler:
AHRWEILER: Weißer Turm and museum by Kathrin_E
The Weiße Turm (white tower, Europe's northernmost dynasty tower) contains the Museum der Stadt (town museum). The museum shows ancient Roman finds, medieval religious art, the silver treasure of the riflemen's guild, and an exhibition on the town's history in the 19th century when the thermal springs were discovered and the rise of the spa town began.