It’s hard to ponder the growth of Napa Valley without thinking of Silver Oak. The cult-favorite Oakville winery has been producing some of the region’s best cabernet sauvignon since the 1970s, and after more than 40 years, the majority of what the place makes remains cabernet. (Twomey, a sister brand, is produced elsewhere in the valley.) While the tasting room itself is upscale, the winery has other highlights you’ll appreciate when you see them on a formal tour. Like the glass-house library with decades’ worth of wine vintages. Or the history gallery with artifacts and other mementos from the original winery. Or the iconic water tower. For visitors, the daily food-and-wine pairing is memorable for all it includes; chef Dominic Orsini matches four glasses of wine with four different small bites. Visitors can also book a cooking class with Orsini; the hands-on part of the experience is followed by a meal during which students and teacher sit down to eat their creations paired with Silver Oak wine. And now Silver Oak has another wine country experience for fans to explore: It recently opened a second facility in Sonoma County’s Alexander Valley, near Healdsburg.