A number of logan stones have been found in Britain, traces of one no longer standing having been discovered in Stonehenge. (See The Celtic Druids.) It is interesting to note that the green stones forming the inner ring of Stonehenge are believed to have been brought from Africa.
Stonehenge is perfectly aligned with the Great Pyramid in Egypt. The great Megalithic henges have often been described as doorways or portals. The word door comes from duar, which meant "Druid." Another meaning of the word Druid is to "encircle" or "enclose within a circle."
Stonehenge is built of the stone of the district...But some of the stones, especially those which are said to have been devoted to astronomical purposes, have been brought from a distance, probably the North of Ireland