The Boheh Stone, a Neolithic monument in Ireland, features 250 petroglyphs and aligns with celestial events, particularly solstices, suggesting its significance to early agricultural societies.
First documented in the 1860s, the Clonfinlough Stone in County Offaly is a large limestone boulder with a variety of motifs. These include unusual phi figures, which may date back to prehistoric times or the 13-14th century Christian era.