Remember Jim Denevan, whose work I put up back here (if you didn't see it, check it out, pretty awesome)? Well apparently back in March, he completed the "world's largest work of art," on Lake Baikal in Siberia, and there's a documentary in the works about the piece (intro below).
Denevan's large-scale earth works explore the impermanent, carving geometric shapes into element-sensitive areas, like sand and snow, that will eventually be erased by wind and water.
This latest project in Siberia was a 9-square mile spiral of circles, along the fibonacci curve, starting at 18" and ranging up to miles in diameter.
Jim Denevan site here.
Siberia project as featured on The Anthropologist