Across from Hagia Sophia stands the supremely elegant Imperial Sultanahmet Mosque with six minarets. Built between 1609 and 1616 by the architect Mehmet, the building is more familiarly known as the Blue Mosque because of its magnificent interior paneling of blue and white Iznik tiles. During the summer months an evening light and sound show both entertain and inform visitors. The cascading domes and four slender minarets of the Imperial Süle...