Hagia Irene
Aya İrini Kilisesi
Hagia Irene is the Byzantine church that was never made into a mosque, and it is the reason it still looks like a Byzantine church inside.
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District guide · Istanbul
Fatih occupies the historical peninsula at the heart of Istanbul, encompassing the site of ancient Constantinople and bordered by the Golden Horn and Sea of Mar...
Photograph · Arnstein Rønning · CC BY-SA 3.0
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Editorial responsibility: Elena Voss · Roavina Travel Editor
Fatih occupies the historical peninsula at the heart of Istanbul, encompassing the site of ancient Constantinople and bordered by the Golden Horn and Sea of Marmara. The district contains Ayasofya, Topkapi Sarayı museum, and Sultanahmet Camii, monuments spanning Byzantine and Ottoman periods. The abundance of historical structures, religious buildings, and bazaars makes it central to understanding Istanbul's past.
Checked 2026-09-04
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Aya İrini Kilisesi
Hagia Irene is the Byzantine church that was never made into a mosque, and it is the reason it still looks like a Byzantine church inside.
Tekfur Sarayı is the last Byzantine palace in Istanbul still standing to its full height, and it survives because it was never important enough to be worth demolishing.
Şerefiye Sarnıcı
Şerefiye Sarnıcı is a Roman water tank that spent most of the last three centuries with a building sitting on top of it.
Çinili Köşk
The Tiled Kiosk, Çinili Köşk, is the oldest non-religious Ottoman building in Istanbul and the odd one out among the city's Ottoman monuments: it does not look Ottoman.
Büyük Saray Mozaikleri Müzesi
Beneath the Arasta Bazaar, the row of shops behind the Blue Mosque, lies a strip of floor that belonged to the Great Palace of Constantinople.
Binbirdirek Sarnıcı
Turks call it Binbirdirek, "a thousand and one columns", which is a way of saying "a great many" rather than a count. The real figure is 224.