The space agency officially investigated the Steppe Geoglyphs, a group of more than 200 giant squares,lines, rings and a swastika formed by dirt mounds in the Turgai area of northern Kazakhstan.
Left: The Ushtogay Square is at 50.832933°N 65.326276°E.
Right: The Turgay triradial is at 50.102778°N 65.360833°E.
NASA teamed up with Digital Globe to study the formations, the joint effort produced 50 to 60 images of the glyphs which measure about 300 to 1300 feet across.
These geoglyphs are thought to have been made by the Mahandzhar culture between seven and nine thousand years ago which would make them older than any other such geoglyphs, including the famous Nazca Lines of Peru, which date to between 200 B.C. and A.D. 500.