I went higher than I'd ever been in my life when I visited Peru this October. I crossed the Salkantay Pass, climbing to 4,630 metres, or 15,200 ft, almost as high as Mont Blanc. The Salkantay...

The Peruvian city of Cusco is magical. Set at an altitude of 3,400 metres, it is the ancient capital of the mighty Incan Empire that once stretched from Quito to Santiago de Chile. The local...