Mystery of Stonehenge, parts 1 and 2

"SUMMARY: This film outlines the three stages of Stonehenge's development and describes the means by which the enormous stones were transported from Wales and the Marlborough Downs to the site. Dr. Gerald Hawkins reviews his theory, stating its predictions of solar and lunar alignments with specific Stonehenge arches and the heelstone. Two empirical tests of the alignments predicted by Hawkins' theory are recorded, and three of the twenty-four solar positions are confirmed" - Summary from Worldcat.