Art of the ancient Nazca, only visible from the air, it's purpose unknown. The Nazca Lines are not easy to photograph from an airplane, but I did my best; a segment from "The Inca Lost and Found", a free Intrepid Berkeley Explorer video that features Machu Picchu, Sacred Valley of the Incas, Cuzco, Inca interviews, the search for Andean musicians, Lima, the Nazca Lines, and other parts of Peru.