7. The Nazca Lines
The Nazca lines are a series of designs and pictographs carved into the ground in the Nazca Desert, a dry plateau located in Peru. They cover an area of some 50 miles, and were supposedly created between 200 BC and 700 AD by the Nazca Indians, who designed them by scraping away the copper colored rocks of the desert floor to expose the lighter-colored earth beneath.
The lines have managed to remain intact for hundreds of years thanks to the region’s arid climate, which sees it receive little rain or wind throughout the year. Some of the lines span distances of 600 feet, and they depict everything from simple designs and shapes to characterizations of plants, insects, and animals.
Scientists know who made the Nazca Lines and how they did it, but they still don’t know why. The most popular and reasonable hypothesis is that the lines must have figured in the Nazca people’s religious beliefs, and that they made the designs as offerings to the gods, who would’ve been able to see them from the heavens.
Still, other scientists argue that the lines are evidence of massive looms that the Nazcas used to make textiles, and one investigator has even made the preposterous claim that they are the remnants of ancient airfields used by a vanished, technologically advanced society.
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