Founded by the Greeks as Byzantium more than 2,500 years ago, renamed Constantinople in 330 AD when Constantine the Great elected it the capital of the Roman Empire, and finally called Istanbul after the Ottoman conquest in the 15th century, the city on the Bosporus remains one of the most exciting places in the world. Its strategic location as gateway between Orient and Occident, the Islamic and the Christian world, the Black Sea and the Mediterranean, predestined it for a turbulent history. Guided sightseeing starts at TOPKAPI PALACE, the residence of the Ottoman Sultans. Admire its exquisite collection of Chinese porcelain and the Imperial Treasury, including the stunning “Spoonmaker’s Diamond.” Then, visit Sultan Ahmet’s BLUE MOSQUE followed by the ROMAN HIPPODROME, and tour the HAGIA SOPHIA and the SPICE BAZAAR with its 4,000 tiny shops. The rest of the afternoon is at leisure. For a taste of Turkish nightlife, join our optional dinner outing and discover the fascination of belly dancing. (Breakfast)