The Château du Haut-Kœnigsbourg is a medieval castle located in the commune of Orschwiller in the Bas-Rhin département of France, in the Vosges mountains just west of Sélestat. It is situated in a strategic location on a rocky spur overlooking the Upper Rhine Plain; as a result it was used by successive powers from the Middle Ages until the Thirty Years' War when it was abandoned. From 1900 to 1908 it was rebuilt at the behest of the German emperor Wilhelm II. Today it is a major tourist site, attracting more than 500,000 visitors a year.