Istanbul, formerly known as Constantinople, was the hub of the Ottoman Empire, and many of the grand buildings of this period are present today. You could easily spend a week in this city and still not have seen all the sites. Today we will explore the old Sultanahmet Area. We will visit the Topkapi Palace, the Hippodrome square (obelisks), the Basilica Cistern, the Hagia Sophia and the Blue Mosque. In the late afternoon or early evening we will drive to the airport and fly to Kayseri. From Kayseri, we will drive to our group hotel in Cappadocia.