Crisscrossing the highland plains in western Bolivia is a network of thousands of near perfectly straight lines etched into the ground. These lines do not make any figures or shapes, but they go on remarkably straight for tens of kilometers. Whoever created them worked extremely precisely, which was not easy task in this hilly terrain with rocks, shrubs and other natural obstacles.

Named after the nearby volcano, the Sajama Lines lie under the shadow of Bolivia’s tallest peak. From the ground, the lines are practically invisible and easy to overlook. It’s only from the air that one can recognize the incomprehensible extent of what maybe the world’s largest prehistoric artwork.

Digitally enhanced satellite image of the Sajama Lines.