Rheinfelden (940 feet a/s), is renowned as a delightful Spa with excellent saline springs, the strongest of the kind on the European continent. It is a quaint old town with walls and towers dating back to the feudal days of the Middle Ages.
Home to Feldschlösschen beer, Rheinfelden, which is just inside Aargau canton on the south bank of the Rhine, 24km east of Basel, has a pretty, semi-circular Altstadt (Old Town). Several medieval city gates, defensive towers and parts of the old walls still stand. They say the triangular Messerturm is so named because it once contained a shaft lined with knives.
The pedestrianised main street is lined with shops, restaurants and the occasional tavern. At its western end, an early 20th Century bridge leads to the Inseli, a once fortified island that lines in the middle of the Rhine and forms a part of German Rheinfelden on the north bank.