The Nasca Lines are one of humanity's mysteries. They are located in the Pampa region of Peru. They are the most outstanding group of geoglyphs in the world. Etched in the surface of the desert pampa sand about 300 hundred figures made of straight lines, geometric shapes and pictures of animals and birds - and their patterns are only clearly visible from the air. They were built by a people called the Nasca- but why and how they created these wonders of the world has defied explanation. In 1969, Erich von Daniken floated the idea that airborne extraterrestrials might have laid out the lines as runways for their aircraft.