The Küssaburg castle ruins are located on a summit (634 m) in Bechtersbohl, a district of Küssaberg. The ruin is one of the most important monuments on the Upper Rhine and was probably built between 1125 and 1141.
In 1664 the castle ruins were destroyed by a landslide during the Thirty Years War. Before the destruction, the castle was owned by the Counts of Küssenberg, the Diocese of Constance and the Counts of Sulz.
