Elderly Man Is Building His Own Stonehenge Using Methods He Believes Were Used For The Original.

Corbet's Keen Eye Apr 18 2013

http://youtube.com/embed/pCvx5gSnfW4

But did they have concrete slabs to work on back then?  not sure the 2-pebble technique works on soil/dirt, but I suppose they could manage by placing rocks in the path they wanted to travel.  Whatever the case, still impressed.