Hagia Sophia (Turkish: Ayasofya; Ancient Greek: Ἁγία Σοφία, romanized: Hagía Sophía; Latin: Sancta Sapientia; lit. 'Holy Wisdom'), officially the Hagia Sophia Grand Mosque (Turkish: Ayasofya-i Kebir Cami-i Şerifi; Greek: Μεγάλο Τζαμί της Αγίας Σοφίας), is a mosque and former church serving as a major cultural and historical site in Istanbul, Turkey. The last of three church buildings to be successively erected on the site by the Eastern Roman Empire, it was completed in AD 537.
https://en.wikipedia.org/wiki/Hagia_Sophia