One of the big reasons I love researching family history is that I find out all sorts of other interesting things along the way. One afternoon I was GoogleEarthing a little farm in North Yorkshire which at one time belonged to my BOLTON ancestors who farmed there for at least five successive generations. I noticed not far away a prominent henge. In fact there is a formation of 3 massive henges known as the Thornborough Henges. They are aligned to Orion and are even older than the pyramids.
The University of Newcastle have done an excellent study of the site which can be found at
http://thornborough.ncl.ac.uk/project_design/project_design_contents.htm
but it still leaves so many questions open. I'd like to say I have time to investigate further but I don't.