In a country as large and diverse as Argentina, it would be possible to construct any number of delightful itineraries. The two-week itinerary below, which follows the route I took on my latest visit, omits some of my favorite regions, including the wine country of Mendoza, Tierra del Fuego and Iguazu. Even so, I enjoyed this journey immensely because the four places it does include are so entirely different from one another: a world capital, an alpine lake district, rugged wine country and an idyllic ranch.