In the Loire Valley in central France, dozens of historic estates are ready to impress you with everything from elaborate gardens and architecture to authentic displays of medieval hunting and defense techniques. Plus, two guides recommend the sites in Brittany where even the rocks can show you a good time. Also, Leslie Carroll digs up juicy backstories on Europe's ruling families, and their "notorious royal marriages." For more information on Travel with Rick Steves - including episode descriptions, program archives and related details - visit www.ricksteves.com.