Archaeologists have discovered in the Sahara, the traces of unknown civilization

Scientists from the University of East Anglia drew attention to the unusual satellite images and aerial photographs. The excavations revealed that personnel were remains of buildings.
As the researchers note, created from the stones of the buildings were of different size and shape from circle to rectangle and Crescent. Some of them form a complex of buildings with an area of 630 meters.
The exact purpose and the age of the finds is still unknown, but scientists speculate that some of them account for more than half a thousand years.