If your trip to Yountville is all organized but your travel itinerary is looking a bit empty, let us give you a few hints and tips.Whatever you do, don't forget your camera when you visit Robert Mondavi Winery. This fantastic attraction is sure to provide some wonderful photo opportunities.Plan a stop at Stags' Leap Winery. It's one sight you'll usually find on many travelers' must-do lists. Opus One Winery and Silver Oak Napa Valley Winery are also close by and worth a pit stop.