Castles and monasteries – On the heights on both shores numerous medieval castles and abbeys can be visited, most of them fallen into ruin. Most noted are the Kyrburg Castle in Kirn, the castles Ebernburg and Rheingrafenstein in Bad Münster am Stein-Ebernburg and the Klopp Castle in Bingen. The monastery ruin of Disibodenberg, located on top of a hill between the junction of the Nahe and the Glan, was founded at the beginning of the 8th century by Saint Disibod, an Irish missionary. Saint Hildegard of Bingen, a famous Christian mystic, also lived here for a while.