Stone Circles In Saudi Arabia
Enigmatic circular stone formations reminiscent of those in Europe are found on remote hilltops and valleys throughout Saudi Arabia. The rings are 5 to 100 meters in diameter and are surrounded by stone walls a foot or two tall. Some of the rings have "tails" that stretch out for hundreds of meters. From the air, the patterns have a striking resemblance to designs etched in Peru's Nazca plateau. Little is known about the circles and virtually nothing about their purpose.
(Anonymous; "Saudis Seek Experts to Solve a Desert Mystery," Kayhan International, p. 7, January 1, 1978.)
Reference. Additional African megalithic sites are described in Ancient Man. This Handbook is described here.