Some places are so extraordinary that photos and words fail to capture their beauty. Machu Picchu, in the Andes Mountains near Cusco, is one of those places.   On a recent visit to Peru, I hiked steep stone steps to explore this magical Inca sanctuary. While this ancient mountain citadel was an unforgettable highlight of my experience, exploring the surrounding Sacred Valley of the Incas offered much more to see and do.   The bustling modern city of Cusco, once the capital of the Inca...