The Landgraviate castle crowns the hill above Marburg, visible from almost anywhere in the old town and reached by a long climb up through the tightly packed lanes of the upper Altstadt. The complex dates mainly from the 13th to the 15th centuries, with a great hall that served as the seat of the Landgraves of Hesse for several generations.
The castle now houses the Museum für Kulturgeschichte (Museum of Cultural History), with exhibits on the history of Hesse and the castle itself. But the main reason to make the climb is the view: from the ramparts you look down over the entire old town, the River Lahn winding through the valley below, and the wooded hills stretching away toward Frankfurt. On a clear day it is one of the better views in central Hesse.