premise: From left to right they Haghia Sophia; the Blue Mosque; the Nuruosmaniye (above the Galata Bridge); Beyazet Camii; the Beyazet Tower; the Seleymaniye, looming over the far shore; the ??ehzade Camii (in the distance); the Aqueduct of Valens; the twin minarets of the Fatih Camii (above the Ataturk Bridge); and the Sultan Selim Camii.
hypothesis: These mosques are actually all of the same size and shape.