Megaliths of Carnac and of the shores of Morbihan

There's a local tradition that claims that the reason these stones stand in such perfectly straight lines is that they are a Roman legion turned to stone by Pope Cornelius.

Carnac Stones

This postcard was sent by José

The Carnac stones are an exceptionally dense collection of megalithic sites near the south coast of Brittany in northwestern France, consisting of stone alignments (rows), dolmens (stone tombs), tumuli (burial mounds) and single menhirs (standing stones). More than 3,000 prehistoric standing stones were hewn from local granite and erected by the pre-Celtic people of Brittany and form the largest such collection in the world. Most of the stones are within the Breton municipality of Carnac, but some to the east are within neighboring La Trinité-sur-Mer. The stones were erected at some stage during the Neolithic period, probably around 3300 BC, but some may date to as early as 4500 BC. - in: wikipedia