Burg Wildenstein (Leibertingen), a fortified spur castle, built between 1200 and 1300 A.D., is situated above the Danube break-through at the Swabian Alb in Baden-Württemberg, Germany. It functions now as a hostel of the German Youth Hostel Association ("Deutsches Jugendherbergswerk").
Coordinates: 48°03′19.48″N 9°00′2.9″E / 48.0554111°N 9.000806°E