The Atacama Desert has more than 5,000 ancient geoglyphs—immense designs and figures drawn into the dry flats and hills—similar to Peru’s famous Nazca Lines north of here. Some of the Atacama geoglyphs are about 1,200 years old, dating to 800 CE. The most recent was made 500 years ago in the 16th century.

The largest is called the Atacama Giant—it’s a 390-foot-tall figure on a hillside that looks a bit like an Alien. Scientists think the Atacama Giant was likely an astronomical guide, as the lines that stretch off the figure’s head predict the movement of the moon and can be used to map the changing of the seasons. Or, as some believe, perhaps it really is a depiction of the alien who created it.

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