Gobeklitepe, a Neolithic archaeological site dating back to 9000 BC, is the oldest known human-made structure still standing ...

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 ...

Now, researchers from Curtin University have found that the limestone pillars measuring about 5m high and 2m wide were formed 100,000 years ago during what was the wettest period in the area’s ...

with Torreto and fam drifting Raptors around 25 square-foot limestone pillars that are as cinematic as they are crucial to ...

Over thousands of years, more calcium carbonate builds up making stalactites longer and longer and stalagmites taller and taller until they eventually meet, forming a limestone column or pillar.