Disembarkation day offers a wonderful opportunity to explore this tantalizing city. Once in the motorcoach, you'll drive over the Galata Bridge with views of the Old City's Sea Walls and the Sea of Marmara, and into the heart of the Old City where you'll stop for photos. Continuing on, you'll travel past a number of glittering gems including two exquisite mosques-the Blue Mosque, renowned for its domes and minarets and an interior dotted with 20,000 delicate blue Iznik tiles in 33 shades; and Hagia Sophia. Built by Constantine the Great, it's one of the greatest surviving examples of Byzantine architecture, rich with mosaics and marble pillars and coverings. Another must-see site is the Byzantine Hippodrome. Once at the heart of Constantinople's political and sporting life, it's now a tranquil city park. Your tour continues on to Istanbul Airport (IST) for your outbound flight.