The foundations of the imperial castle from the first millennium and associated with the reign of Frederick I Barbarossa are well preserved, such as the keep and a well that is the deepest from the Middle Ages. Heralded after his death, the Kaiser was seen as his political and culturally unifying descendant and inheritor of the Barbarossa legend, the trope of the sleeping king, king under the mountain (Bergentrรผcken—including lore about King David, Arthur and Charlemagne), that Frederick with a retinue of knights is not dead but half in slumber in a secluded cavern in the massif and will return again—occasionally dispatching a scout outside to check to see if ravens are still roosting, their absence being a sign that he is needed.
During DDR times, Communist residents in the area wanted to blow up this bombastic reminder of the country’s past but its destruction was stopped by Soviet authorities, admonishing them it was time for Germans to live with their history and statues.