The classic inca trail is one of the most famous and incredible trekking routes in the worldthe machu picchu inca trail is one of the most impressive examples of the approximately 43 km kilometers of roads built by the incas some 500 years ago inca road roads were built across the deserts highlands and jungles stretching from south colombia throughout peru bolivia northern and central chile and to the northwest part of argentina the inca trail tours starts in a typical andean region and fi