Hotels In Niederwerth Deutschland. With hotels.com we help you find the best hotels in koblenz, germany. Rhein mosel halle congress center and rhenish iron art casting museum are also within 6 mi (10 km). Koblenz Altstadt Deutsches Eck 1+2 Städtevideos from www.youtube.com Booking.com, being established in 1996, is longtime europe’s leader in online hotel reservations.