The remains of the Castle can be visited
Kräheneck Castle

The castle ruin of Kräheneck, a spur castle, stands above the Dillweißenstein district of Pforzheim in Baden-Württemberg. Its shield wall still shapes the landscape today.
History+
The origins of Kräheneck Castle date back to the 11th century when it was built by the Lords of Weißenstein, also known as the Lords of Kräheneck. Its first documented mention under the name Creinegg occurred in 1194. It is presumed that Kräheneck was conceived as an unfinished defensive structure for the nearby Weißenstein Castle, an assumption supported by the absence of economic buildings. The complex was first renovated in 1883 and underwent further restoration in 1972. By 1936, Kräheneck was already listed as a historical monument. Between 1928 and 1939, castle festivals were held here, a tradition that has been revived in recent years, most recently in 2008 with the third Kräheneck Summer Games.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://www.pfenz.de/wiki/Datei:Kr%C3%A4heneckspiele_L%C3%B6ffelstielzchen_7_06.jpg
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 48.8683, 8.6787