Palmaz Vineyards
It took six years to excavate a hillside Coombsville property and four more to complete aging caves and a five-level gravity-flow winery, the equivalent of an 18-story building. The collector-quality Cabernet Sauvignons made at this engineering triumph, from grapes grown at three distinct elevations, benefit from these efforts and the later introduction of a space-age wine-monitoring system that invariably astonishes guests. It's a tribute to the viticultural and production teams that the wines, including a Riesling, a Chardonnay, and a Muscat Canelli dessert offering, linger equally strong in memory. Private appointment-only tastings begin with a sip overlooking the largest vineyard and the southern Napa Valley beyond it, followed by a tour and a tasting in an intimate salon. The peerless hospitality adds further joy to a visit here.