Machu Picchu is the highlight of our trip and one of the long-awaited new Seven Wonders of the World. Built by the Inca Empire in the 15th century, Machu Picchu is one of the few cultural and natural heritage sites listed by UNESCO. P7-9 is the sacred valley of the Inca in Peru, located between Cusco and Machu Picchu, and was once an Inca temple.