Many closed or open churches with a Greek cross ground plan and chapel-like churches, reflecting the religious understanding of the period with their descriptions and architectures, with frescos or without frescos, with single and double naves are located on the steep slopes of the valley and combine with the waters of Melendiz Stream. In terms of its natural structure, the valley was used as a hermitage and place of worship by the Christian priests and monks since the IX. Century. It was also used as a sanctuary and a hiding place during war.

There are frescos in the churches of the valley reflecting the subjects such as the Nativity, the Gospel, the Epiphany, the Exodus, the Last Supper.