The stunning fresco-filled Karanlık Kilise, is the most famous of the Open-Air Museum's churches. It takes its name from the fact that it originally had very few windows. Luckily this lack of light preserved the vivid colour of the frescoes, which show, among other things, Christ as Pantocrator, Christ on the cross and the Betrayal by Judas. The church was restored at great expense and the entrance fee is intended to limit visitor numbers to further preserve the frescoes.