The Culinary Institute of America (CIA) is a culinary institution training chefs in the culinary arts. There are several campuses in the U.S., with California campus in St. Helena in Napa wine country offering a boutique dining experience to those seeking a great meal prepared by students in training.    World class talent converges at this epicenter of wine and food, to make for a dining experience you won't want to miss on your next visit to Napa / Sonoma north of San Francisco.  While there are great chefs throughout California, there's no region that quite combines the scenic hills of Napa wine country, with some of the oldest, finest wineries.    Fresh herb gardens on site make the meals unexpected and delightful. In fact, when you dine at CIA's Greystone Restaurant (named for the historic house in which the facility is located), you will be able to select from the current day's offerings. This keeps locals well fed, and never bored. Visitors will find the meals truly a cut above the norm. When dining at Greystone,  the surroundings are breathtaking and include Napa Valley vineyards. The restaurant space was designed by  Adam Tihany, offering a view of the chefs at work from every hand-crafted table. Combining dining with entertainment (chefs must learn to prepare and cook meals under the spyglass of their customers),  the results offer visitors more than just a meal served from behind a door.  The preparation is brought out into view, and the experience addictive as you watch students and chefs work with passion.   Many have dined at Greystone Restaurant, then signed up for special classes and clinics. WINE SPECTATOR RESTAURANT, CALIFORNIA: 2555 Main Street, St. Helena, CA 94574. www.ciachef.edu Reservations: 1-707-967-1010 Location: Highway 29, 1 mile north of downtown Saint Helena. Left side of road.   Note:  CIA Greystone Campus also includes Rudd Center for Professional Wine Studies, Cannard Herb Garden and Williams Center for Flavor Discovery.     California site