The Nazca Lines are massive geoglyphs — sometimes more than a thousand feet long — carved into the ground some 250 miles south of Lima, Peru. At first glance, these lines might look similar to crop circles, and can only be viewed from the cockpit of a helicopter or airplane. Depicting animals, plants, and various shapes, the Nazca Lines were created by the Nazca people some 2,000 years ago. Archaeologists have studied the lines for 80 years (and are still discovering new geoglyphs), but still don’t know for sure why ancient people created such massive monuments they couldn’t even see. Early theories suggest the lines had some sort of astronomical or calendrical purpose — not unlike Stonehenge — although more recent theories suggest the structures could’ve been tied to irrigation or elaborate religious ceremonies. Whatever the reason, the Nazca Lines remain a mystery etched into the very face of the planet.
