Stretching across the Nazca plains like a giant map or blueprint left by ancient astronauts, lie the famous Nazca Lines of Peru. Peru is associated with the Incan Civilization who many link with alien visitors who still interact with local people to this day.

The Nazca Lines are an engima. No one has proof who built them or why. Since their discovery, the Nazca Lines have inspired fantastic explanations from ancient gods, a landing strip for returning aliens, a celestial calendar created by the ancient Nazca civilization -- putting the creation of the lines between 200 BC and 600 AD, used for rituals probably related to astronomy, to confirm the ayllus or clans who made up the population and to determine through ritual their economic functions held up by reciprocity and redistribution, or a map of underground water supplies.