The altar stone at Stonehenge came from the northern tip of Scotland. That’s 466 miles—through dense forests, over rivers, and across mountain ranges—long before modern roads or machines. This wasn’t some local quarry job. It was a massive logistical feat. So what tech or technique were they using… that we still don’t fully understand? | The Randall Carlson

The Altar Stone of the Stonehenge monument traveled roughly 435 to 465 miles in ancient times from Scotland all the way to England's Salisbury plain, a geological analysis has showed. | Reuters

The mystery of the Altar Stone at Stonehenge. | IFLScience