Because of their colossal size (stretching more than 50 miles), Nazca Lines, which consists a series of hundreds of huge ancient drawings draw into the high plateau in Nazca Desert Peru’s, are claimed by ancient alien theorist to be alien made figures that were served as runways for alien’s spaceship or aircrafts (UFO to us).
While some of these are straight line; drawings of animals, birds and humanoid figures can also be observe and appreciated only if viewed from a great height or an aircraft. As the lines were made to be seen from way up in the air, they could have been made according to instructions from aircraft, and there is no evidence that the Nazca people (who inhabited the area between 300 B.C. and 800 A.D) invented any flying machines or aircrafts. Thus ancient aliens theorists have been linked these great lines with the ancient aliens’ hypothesis.