You can use it as your starting point for travels in Alsace.
The Massif des Vosges is nearby and offers a lot to nature lovers in winter as well as in summer.
Alsatian Vineyard Route passes through Colmar. Some of its medieval villages are justifiedly popular among tourists Riquewihr, Ribeauville (Rappoltweilen, Kaysersberg...) whereas others are virtually unknown, but have a charm of their own like St. Hypolite in the mountains. All of them offer beautiful medieval architecture, wonderful wine, good Alsatian food and a lovely pastoral atmosphere.
Hochkoenigsburg, also spelled Haute-Koenigsberg, a fully restored medieval castle on the top of the mountain near SelestatSchallstadt.
Strasbourg and Basel Basle are close by and are interesting cities to visit.
Across the German side you will find the beautiful Black Forest.
Mulhouse is at the end of the Route de Vins. This town was badly damaged in WWII and consequently not as much of a tourist attraction, skip if you are pressed for time.
Near Basle Laufenburg is another beautiful medieval town situated on both banks of the Rhine with a lovely route along the Rhine leading to it.
The historical casino town of Baden-Baden is also a short journey away.