La Rosière on the French side, La Thuile on the Italian side, linked by the Petit-Saint-Bernard pass — the same one Hannibal crossed with his elephants, legend has it. It is the only international ski area in the Northern Alps, and one of the rare places where you can have a plate of pasta in the Aosta Valley before heading back to ski in Savoie in the afternoon. La Rosière faces due south, across from the Mont Blanc massif, with remarkable sunshine; La Thuile is shadier and steeper, with the famous Franco Berthod run that hosts the Women's World Cup. Wind at the pass: the link sometimes closes.