Domaine Chandon : This Yountville winery offers a gorgeous setting whereby to sample their premier champagne. Their wine and champagne-making tour is one of the best in Napa.
Grgich Hills : Home of the California Chardonnay that won the Paris Tasting of 1976, Grgich Hills uses a biodynamic farming process to produce exquisite wines.
Culinary Institute of America : The ancient grey stonework and quietly forested surroundings of the CIA belie the bevy of culinary activity inside. Stop by for cooking classes and demonstrations, to peruse the museum, or to indulge in a meal at the exemplary restaurant or café.
A. Rafanelli : The best Sonoma reds are produced at this small, unpretentious, and appointment-only winery. Be sure to pick up one of their stunning Cabs.
Mission San Francisco Solano de Sonoma : Sonoma is home to the last California Mission and the centerpiece of Sonoma State Historic Park.