Vallejo, Calif.—Napa’s long-running Wine Train may have trademarked the name, but that hasn’t dimmed the popularity of wine-themed trains across the United States. The season is just starting for trains from California to New Jersey, bringing people to the wine, and wine to the people. Niles Canyon Railroad A 90-minute round-trip takes passengers through an obscure part of Bay Area history, and on selected Sundays it includes wine tastings hosted by wineries from Livermore Valley in the East Bay. With antique depots in Sunol and Niles, Niles Canyon Railroad runs on century-old tracks following the original terminus of the Southern Pacific Railway, which operated on this route until 1879.