Hagia Sophia in Istanbul, Turkey has been the most important Orthodox Christian cathedral, the largest central Ottoman mosque, and more recently a on of Istanbul’s most popular museums. The Hagia Sophia was constructed in the 5th century CE under the Eastern Roman emperor Justinian I, and remained the centre of Eastern Orthodox Christianity until Constantinople fell to Mehmed the Conqueror in 1453 and it was converted into a mosque. The building remained a mosque until converted into a museum in 1935 .should it be changed to a mosque ?

