Impressive capital Incas, Cusco by its history and beauty is certainly one of the cities the most emblematic of South America. In the eyes of the Incas it was the center of the world and many site still shows the importance from this city. It is also the ideal gateway to discover the Sacred Valley and Machu Picchu. Discovered by the world in 1911, Machu Picchu is the jewel of the continent, perched on its rocky promontory, the ancient city is listed as a UNESCO World Heritage Site since 1983. Despite the influx of tourists, the site has lost none of its magic.