Amy Snook knows more about wine than your average traveler. Originally from California, she now lives in the Douro Valley of Portugal, her partner works in the wine industry, and she has visited 47 countries, many of which have celebrated viticulture. But seven years ago, on a trip to Mendoza, a winemaking region in the foothills of Argentina’s Andes Mountains, she opted to abstain from drinking alcohol, a decision she would repeat in future travels.