Ruby Leni's a hop and a skip from chic Königsallee, the old town and the riverside with its laidback bars. Graf-Adolf-Platz U-Bahn station is right outside, and the airport can be reached in around half an hour.

As downtown Dusseldorf’s tallest building, Ruby Luna's hard to miss. Bustling Carlsplatz, the pretty old town and the Rhine's riverside bars are a short walk away. Benrather Strasse U-Bahn station is right outside, from where the airport's a half-hour hop.

You'll find Ruby Coco on Dusseldorf's chicest street – the Kö. The main station's a 12-minute walk away, or 4 minutes by U-Bahn.