As the quest to find the origins of Stonehenge’s Altar Stone heats up, researchers rule out one Scottish site that appeared to have a direct link to the monument.

The prehistoric megalithic structure located about 85 miles southeast of London in Wiltshire, England, is believed to have been a unifying project between ancient civilizations.

Thus, the true origin of the Altar Stone remained an open question—until now. Stonehenge is a Neolithic stone monument in the county of Wiltshire.

Scientists believed for more than a century that Stonehenge's central sandstone slab came from close to Wales, but new research shows that it matches sandstone formations of Scotland.

The Altar Stone, the largest of the bluestones used to build Stonehenge, lies at the heart of the ancient monument in southern England. The 13,227-pound (6-metric ton) block was likely transported ...

By Ashley Strickland, CNN (CNN) — In the hopes of solving one of the enduring mysteries about the iconic monolith, geologists have shifted the search for the origins of Stonehenge’s central ...