On our travels we took several day cruises on the Rhine, which starts in Koblenz. The last stop of the Rhine river cruise with the the KD Goethe ship is Rüdesheim. KD stands for Köln-Düsseldorf
I highly recommend to buy a Guide Book for Germany. It helped me in the past to discover places I would’ve never thought of. My recommendation:
Rüdesheim is surrounded by the Rheingau wine mountains and a gateway to the upper Middle Rhine Valley. The district Assmannshausen is already a World Heritage Site.
The famous alley is the Drosselgasse, it’s only 2 meters wide and 144 meters long. It is walked by three Million people/tourists a year. There a mainly Wine restaurants, gift and souvenir shops