If Stonehenge Is Actually a Giant Instrument, What Does It Sound Like?

We know that the rocks of Stonehenge were carried there from over 200 miles away, but we've never known why. Now, researchers say they believe it was for the special sonic qualities of a particular kind of stone—and that Stonehenge might have served as a bell-like instrument. » 3/09/14 4:00pm 3/09/14 4:00pm