Seven Martyrs Church, Kastro, Sifnos Island, Cyclades, Greek Islands, Greece, Europe

Seven Martyrs Church, Kastro, Sifnos Island, Cyclades, Greek Islands, Greece, Europe

Seven Martyrs Church, Kastro, Sifnos Island, Cyclades, Greek Islands, Greece, Europe

Seven Martyrs Church, Kastro, Sifnos Island, Cyclades, Greek Islands, Greece, Europe

Rock church of Madonna della Stella, Gravina, Bari, Alta Murgia, Apulia, Italy

Panagia Poulati Monastery, Sifnos Island, Cyclades, Greek Islands, Greece, Europe

Church of Santo Stefano, Polignano a Mare, Bari, Apulia, Italy

Seven Martyrs Church, Kastro, Sifnos Island, Cyclades, Greek Islands, Greece, Europe

View of the Duomo and the Sassi of Matera, from the cliffside, Basilicata, Italy, Europe

View of the Duomo and the Sassi of Matera, from the cliffside, Matera, Basilicata, Italy, Europe

View of the Duomo and the Sassi of Matera, from the cliffside, Basilicata, Italy, Europe

Meteora, ancient holy Monastery of Varlaam, UNESCO, Kalabaka, Greece

Church of Saint John the Theologian, a Macedonian Orthodox church situated on the cliff over Kaneo Beach, UNESCO World Heritage Site, overlooking Lake Ohrid, Macedonia, Europe

Seven Martyrs Church, Kastro, Sifnos Island, Cyclades, Greek Islands, Greece, Europe

Tatev monastery standing on the edge of a deep gorge of the Vorotan River, Syunik Province in southeastern Armenia, Eurasia

Sassi di Matera, UNESCO World Heritage Site, Basilicata, Italy, Europe

Mar Saba, one of the oldest continuously inhabited monasteries in the world, eastern Judean Desert, Israel

The Monastery of the Temptation, Jericho, West Bank, Israel