Considering the Hotel Imperial in Cologne?
A VT member wrote the following comment about visiting Cologne:
Rhine trip by darkjedi
Striking through the city of Cologne is the River Rhine. Next to the giant Hohenzollernbrucke railway bridge just along the bank are the Rhine cruise ships. Some of which will take you up and down the river for an hour or so, others will take you much further even to Koblenz and Bonn if you have a spare day.