Istanbul's Golden Horn offers panaramic views of the Old Town, a chance to see how the fishermen are doing, and plenty of options for a meal, including Istanbul's version of fast food: fresh mackerel sandwiches. For urban energy, join the million commuters who ferry over and back daily from the Asian side to the European. For more information on the Rick Steves' Europe TV series — including episode descriptions, scripts, participating stations, travel information on destinations and more — visit www.ricksteves.com.