Suzanne B.
Yelp
While you're in Alsace, in between hopping to Vineyards, make sure to take some time to visit the Chateau du Haut-Koenigsbourg.
When I visited, it was a foggy and gloomy day down in the valley. My friend and local tour guide assured me that the castle was not to be missed while in Alsace. Game for anything, I was eager to see the place while I was there.
We wound up the hill, climbing higher and higher, until finally the fog broke and the castle was visible, like it was floating in the sky. We parked along the side of the road, bought our tickets, and set off on a self-guided tour. There are guided tours available, but so much is explanatory as you walk through.
Haut-Koenigsbourg is a perfect example of Alsace itself. Centuries old and overseeing the production of some of the best white wine in the world (no bias here, I assure you!), it was restored meticulously after Alsace was ceded to Germany in the late 19th Century (hence the mashup name that combines both German and French). When Alsace was returned to France after WW2, it was naturally returned to French hands as well.
Walk through history and see the transformation for yourself when you spend an afternoon at Haut-Koenigsbourg!