Hagia Irene
Hagia Irene stands in the outer courtyard of Topkapı Palace and is the oldest known church building in Istanbul; the present brick structure dates from Justinian I's rebuilding after 532. Never turned into a mosque, it served the Ottomans as an arsenal and is now a museum and concert venue, with a large black cross from the Iconoclast period in the apse.
Nearby
Hagia Sophia
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Istanbul Archaeology Museums
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Basilica Cistern
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Hürrem Sultan Hammam
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Topkapı Palace
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Hippodrome of Constantinople
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Blue Mosque
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Turkish and Islamic Arts Museum
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