Kaysersberg , in Alsace, was an important town in the Middle Ages. It has a large fortress, and the town's name means Emperor's mountain which comes from the fortress. It has wonderfully preserved half timbered houses and is a great setting for any Alsacian Festival due to it's medieval atmosphere.
Albert Schweitzer is from here and you can visit his home.
Tokay (now sold as Pinot Gris, after Tokaji became a protected denomination of origin) is the specialty wine of Kaysersberg and the town is surrounded by vines. There is a large old stone well in the town which has an inscription advising you to drink wine with dinner and eschew water.