The Nazca Lines in Nazca Desert, Peru.
There is a series of ancient designs strethcing over 50 miles of land has baffled archaeologists for decades. Along with some simple lines and geometric shapes, which include drawings of animals, humans and birds, some measure more than 600 feet across. Because of their enormous size, the figures can only be appreciated from above. There is also no evidence that the Nazca people, who inhabited the area from 300 B.C. to 800 A.D., invented any flying machines. Ancient alien theorists believe the figures were used to assist spaceships as they came in for a landing