Istanbul's rich heritage spans the centuries from Christian Byzantium to Muslim Ottoman rule to today's thriving city. In this new episode of Rick Steves' Europe, we start our look back at the Roman-tinged Hippodrome, then indulge in the ancient ritual of the Turkish bath. We take in the Blue Mosque and the grand Hagia Sophia, taste Turkish delight at the venerable Spice Market, and explore Topkapı Palace and its harem room deep within. Check your local public television station for airdates and