Hagia Sophia was a Greek Orthodox Christian patriarchal basilica, later an imperial mosque, and now a museum in Istanbul.
Address: Sultan Ahmet Mahallesi, Ayasofya Meydanı, 34122 Fatih/İstanbul, Turkey
Height: 55 m
Architectural style: Byzantine architecture
Architects: Anthemius of Tralles, Isidore of Miletus
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