Constantinople Small-Group Tour of Istanbul with Lunch. Rewind to Istanbul’s days as Constantinople on an 8-hour tour of the city’s Byzantine churches and monasteries. With a guide, explore the Christian sanctuaries built during the Byzantine Empire. See the glittering mosaics and frescoes of Chora Church — now Kariye Museum — and view the church-turned-mosque sites of Pantocrator and Pammakaristos. Explore palatial ruins and more as your guide brings them to life with historical commentary. Lunch at a restaurant is included and numbers are limited to 15 for a personal experience. Book Now and Save 10% Off Constantinople Small-Group Tour of Istanbul with Lunch.