Alien Rocks at Avebury Henge? | The Prehistory Guys bring us down to earth.

Hope you’ll find it in your hearts to excuse the clickbaity title - but then again it is a truly valid use of the word ’alien’. The rocks in question are certainly not where they belong and pose a genuine mystery as to why they are where they have been found - down near Avebury henge in Wiltshire, 280 miles from their origin