9. Salta, Argentina
Head south — like, really south. Salta, Argentina awaits visitors who have an interest in wandering colonial cities, adventuring in the surrounding countryside, and filling up on empanadas. Sip wine in the nearby vineyards, rent a car to road trip in, gape at ridiculous landscape, and make a stop at Las Salinas Grandes, a salt flat within day-trip distance of Salta.