Aerial view of the "Owlman" aka "Astronaut", the most enigmatic geoglyph of the Nazca Lines, which are located in the Nazca Desert in southern Peru. The geoglyphs of this UNESCO World Heritage Site (since 1994) are spread over a 80 km (50 mi) plateau between the towns of Nazca and Palpa and are, according to some studies, between 500 B.C. and 500 A.D. old. Some theories affirm that this 30 metres (98 ft) figure symbolizes an alien.

Aerial view of the "Owlman" aka "Astronaut", the most enigmatic geoglyph of the Nazca Lines, which are located in the Nazca Desert in southern Peru. The geoglyphs of this UNESCO World Heritage Site (since 1994) are spread over a 80 km (50 mi) plateau between the towns of Nazca and Palpa and are, according to some studies, between 500 B.C. and 500 A.D. old. Some theories affirm that this 30 metres (98 ft) figure symbolizes an alien.. Learn more.