Burg Neudenstein crowns a rocky hilltop above the Völkermarkt dam lake's northern shore, its dark masonry earning it the evocative nickname 'Black Castle.' Constructed in 1329 by Konrad von Aufenstein and later seized by Carinthian Dukes following family rebellion, the fortress underwent successive transformations from palace renovations in the 16th century to full Baroque styling in the 17th. From its elevated perch above the Drau river west of Völkermarkt, the castle commands sweeping views across the reservoir and toward the Alpine foothills. Privately owned and actively maintained, Neudenstein stands as a tangible connection to medieval territorial power and aristocratic refinement, its resilient stones testament to centuries of regional history.