Now, researchers from Curtin University have found that the limestone pillars measuring about 5m high and 2m wide were formed ...

The circles follow a common design. All are made from limestone pillars shaped like giant spikes or capital T's. Bladelike, the pillars are easily five times as wide as they are deep. They stand ...

The Bernese Alps are in southwestern Switzerland. Setting the sight line: After years of climbing up a pair of parallel limestone pillars in the mountains of Switzerland, photographer Thomas ...

Tall limestone pillars were arranged vertically to mark individual graves, like headstones, each of which corresponded to a lithic box that served as the actual tomb. Archaeologists identified one ...

Located in the Germus mountains, near the Syrian border, Gobekli Tepe consists of massive stone circles with T-shaped pillars carved from limestone. These structures were built by hunter ...

Ha Long Bay, in the Gulf of Tonkin, includes some 1,600 islands and islets, forming a spectacular seascape of limestone pillars. Because of their precipitous nature, most of the islands are ...

Göbekli Tepe, believed to be the world's oldest known building!Since it is at least 11,500 years old, it predates famous ...

Underground rivers dissolve the limestone and carry it away to leave these passageways which can be full of water during periods of heavy rainfall. This is a calcium carbonate deposit like an ...