Panoramic view of Aya Sophia Mosque (Haghia Sofia) (St. Sophia) at dusk, UNESCO World Heritage Site, Istanbul, Turkey, Europe

Panoramic view of Aya Sophia Mosque (Haghia Sofia) (St. Sophia) at dawn, UNESCO World Heritage Site, Istanbul, Turkey, Europe

Haghia Sofia interior, UNESCO World Heritage Site, Istanbul, Turkey, Europe

The Istanbul skyline including the Haghia Sofia (Aya Sofya), UNESCO World Heritage Site, Istanbul, Turkey, Europe, Eurasia

Mosaic of John the Baptist inside Aya Sofya (Sancta Sophia), UNESCO World Heritage Site, Istanbul, Turkey, Europe

Hagia Sophia Basilica, also known as St Sophia Church and The Old Bishopric, Nessebar, Bulgaria

The Haghia Sofia Mosque at dusk, Sultanahmet District. Istanbul, Turkey