More than 400 wineries dot the fertile soils of Napa Valley, one of the world's premier viticultural regions and famous for its prized Cabernet Sauvignon. But wine, as visitors quickly discover, is only the beginning. Find top-rated chefs at scores of restaurants who work alongside the farmers who tend this land. Take a hot air balloon ride or taste the bounty of the valley on a wine tour. Whatever your pleasure, the result is something understated and exceptional.