THE world's oldest temple, Göbekli Tepe in southern Turkey, may have been built to worship the dog star, Sirius.
The 11,000-year-old site consists of a series of at least 20 circular enclosures, although only a few have been uncovered since excavations began in the mid-1990s. Each one is surrounded by a ring of huge, T-shaped stone pillars, some of which are decorated with carvings of fierce animals. Two more megaliths stand parallel to each other at the centre of each ring.
Göbekli Tepe put a dent in the idea of the Neolithic revolution, which said that the invention of agriculture spurred humans to build settlements and develop civilisation, art and religion. There is no evidence of agriculture near the temple, hinting that religion came first in this instance.
"We have a lot of contemporaneous sites which are settlements of hunter-gatherers. Göbekli Tepe was a sanctuary site for people living in these settlements," says Klaus Schmidt, chief archaeologist for the project at the German Archaeological Institute (DAI) in Berlin.