ISTANBUL, TURKEY - NOVEMBER 26:  A person visits the church Hagia Sofia November 26, 2006 in Istanbul, Turkey. Pope Benedict XVI arrives November 28th in Turkey for his first papal visit to a Muslim country and will visit Hagia Sofia on the third day of his trip. The church began construction by Constantine I in 325 and was finished by his son Constantine II in 360. (Photo by Carsten Koall/Getty Images)