Is it possible that Stonehenge is not religious and was about physics?
Playlist: http://www.youtube.com/playlist?p=PL5C6D8494EA2D8249
(all of the playlist takes about 10 minutes but skim through the recaps at the start.. makes it much quicker.)
Quick version: http://www.youtube.com/watch?v=nPNfpWGLnfM
Can you see anything wrong with this theory?