A wind whips up dust on the desolate landscape of Harrat Uwayrid, the volcanic plateau that rises above the sandstone valleys of AlUla in Saudi Arabia. Across the flat plain, shades of gray-brown ...

Rujm el-Hiri, sometimes called “Stonehenge of the East” or the “Wheel of Ghosts,” is a series of concentric stone ... post Mystery unsolved: Ancient Golan stone circle not an astronomical ...

The ancient stone circle is in the Golan Heights, which was occupied by Israel during the Six-Day War in 1967, but the territory is still claimed by Syria. It consists of several concentric ...

Deep furrows cover large swaths of Ganymede’s surface, and they form a pattern of concentric circles around one spot ... researchers to know whether an ancient impact created the furrows on ...

A precise pottery-matrix casting technology appeared in ancient China more than 2,500 years ago. The thin-walled concentric circles at the tip of the sword with extremely short distance between ...

MEXICO CITY — A previously unknown ancient Maya city has been discovered ... and other structures arranged in almost-concentric circles, the INAH institute said. INAH said the city, which ...