Named after the nearby volcano, the Sajama Lines lie under the shadow of Bolivias tallest peak.
From the ground, the lines are practically invisible and easy to overlook.
Digitally enhanced satellite image of the Sajama Lines.
The longest of them are about twenty kilometers in length.
They were created by scrapping away the dark oxidized surface rocks to expose the lighter soil beneath.
Researchers think that these radial centers could be sites of ancient shrines, burial towers or even towns.
One theory is that the lines were used by the indigenous people as guide when they made sacred pilgrimages.
Indeed, some of the modern roads connecting towns appears to have been built upon these straight lines.
Rough estimates put their linear length at an astonishing 16,000 kilometers.
Some consider the Sajama Lines to be the largest artwork in the world.
Since then, no further studies appear to have been conducted.
Aside from satellite images, there is not even a decent photograph of the lines available on the internet.
Photo credit: University of Pennsylvania
Sources:University of Pennsylvania/Wikipedia
