The Danube River valley is at its romantic best between Melk and Vienna. This stretch is easily explored by bike and boat, and is ornamented with cute villages, fabled castles, colorful pubs, and capped with a 900-year-old abbey. 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.