The last tribal culture in Europe was that of the Celtic lands, whose landscape and traditions hold echoes of the ancient religion of nature and its symbols of death and rebirth.

The Mysteries begin in the frenzy of battle, where the hero is transfigured and the god appears; or in a ghostly circle of stones left by an unknown people; or in the mystic centre of the Celtic cross; or in the stone heads of Gaul and Ireland, which face both ways …

Also of interest
Exploring the World of King Arthur
Philip Plisson's Celtic Coastlines