Barcelona's once-seedy waterfront was completely transformed when the Olympics were held here in 1992. The man-made beaches — a series of golden crescents that stretch for miles along the Mediterranean — are a huge hit. Each comes with lively cafes and bars and all are laced together by inviting promenades frequented by strollers, joggers and bikers. Surprisingly nearby is Barcelona's old center — the Gothic Quarter, a tangled-yet-inviting grab-bag of charming squares, rich cultural treasures and other surprises. 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.