(Huffington Post) Are we one outcrop closer to unraveling the mystery of Stonehenge?
For years researchers have tried to pinpoint exactly where the enormous stones used in the English monument came from--and how they ended up on an otherwise grassy Salisbury Plain.
It's long been thought that the iconic monument's outer stones were hauled from a sandstone quarry situated 20 to 30 miles away, National Geographic reported. The inner stones, however, have presented a tougher question.
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