Jordans Big Circles still baffling scientists 100 years later.

Known as Kh. Shada, this particular circle is called J3 and is situated 82ft (25 metres) east of the Roman Via Nova Traiana. The circle is in an area of rich soils and it was first visited in 1997. Construction of the circles is simple, and typically consists of low walls of uncut boulders. Although, given the precision of some of the circles, this would have involved around a dozen workers, said the experts

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