The Rietburg is a ruined hillside castle on the edge of the Palatinate Forest above the village of Rhodt in the county of Südliche Weinstrasse in the German state of Rhineland-Palatinate.
The remains of this castle are located on the side of the 613-metre-high Blättersberg mountain.
Wikipedia https://en.wikipedia.org/wiki/Rietburg
Address (Unnamed Road), 67480, Germany
Coordinates 49°16'41.215" N 8°4'48.078" E