Stonehenge is one of the most recognizable sites in the world, but for centuries, historians and archaeologists have puzzled over the purpose of the prehistoric monument located in what is now southern England.
Also mysterious is how Neolithic builders, without the help of modern technology—or even a wheel—managed to erect the roughly 100 massive stones in a circular layout.
Its construction is all the more baffling because, while the sandstone slabs of its outer ring hail from local quarries, scientists have traced the bluestones that make up its inner ring all the way to the Preseli Hills in Wales, some 200 miles away.
As researchers continue to scrutinize the ancient ruins, it seems that every new discovery yields more questions than answers. READ MORE