Hotel Überfluss

Just metres above river level, this cutting-edge-cool hotel is a good choice for design-minded urban nomads. Black, white and chrome create a sleek, postmodern vibe that extends to the rooms (those with views are €15 more). There's one suite (from €328) with a river view and a private sauna and hot tub – perfect for a honeymoon. Breakfast costs €14.50.