The symbol of secularism in Turkey: The Hagia Sofia
Even More Hagia Sofia, originally uploaded by oberazzi.The Hagia Sofia in Istanbul was a Christian church that was converted into a mosque by the Turks in 1453 after they sacked Constantinople, the seat of the Byzantine Empire.
In 1935, the founder of modern Turkey, the secularist Ataturk, who abolished the Caliphate in 1924, converted the mosque into a museum.