ISTANBUL,TURKEY - SEPTEMBER 02: Tourists visit Hagia Sophia on September 02, 2011 in Istanbul, Turkey. Hagia Sophia is a former Orthodox patriarchal basilica, later a mosque and now a museum.
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ISTANBUL,TURKEY - SEPTEMBER 02: Tourists visit Hagia Sophia on September 02, 2011 in Istanbul, Turkey. Hagia Sophia is a former Orthodox patriarchal basilica, later a mosque and now a museum.