The spread of Europe’s giant stone monuments may trace back to one region

Ancient sea travelers carried the knowledge of how to build megaliths from France

stone megalith in Sardinia

ROCK ON  Huge stone structures found throughout Europe spread out in three waves starting as early as 6,800 years ago, a new study finds. This stone grave on Sardinia in Italy dates to around 5,000 years ago.

B. Schulz Paulsson

From simple rock arches to Stonehenge, tens of thousands of imposing stone structures dot Europe’s landscapes.