While a number of Byzantine-era cathedrals in Istanbul acquired an Islamic identity after being transformed into mosques during the Ottoman period, a handful of prominent examples, such as the Hagia Sophia and the Chora (Kariye Camii), were turned into museums after the establishment of the Republic of Turkey.
I dok je jedan broj vizantijskih crkava u Istanbulu stekao islamski identitet po pretvaranju u džamije za vreme Otomanske vladavine, nekoliko poznatih, kao što su Aja Sofija i Hora, pretvorene su u muzeje po proglašenju Turske Republike.