The Karabaş cave church in the Soğanlı-Valley is part of a monastery with several rooms inside the tuff rock. One of them is covered with three layers of colourful frescoes. The inscription above the entrance mentions the year 1060/61 and as donators the Protospatharios (a honorary dignity in the later Byzantine Empire) Michael Skepides, the nun Katharina and the monk Nyponos.