Image of Fourknocks (Passage Grave) by CianMcLiam

Looking out the passage from the chamber, the stone on the right bears what some have claimed to be a stylised face, above the end of the passage is the amazingly preserved zig-zags on a lozenge shaped stone which is thought to have originally spanned the end of the passage.

Image credit: Ken Williams/ShadowsandStone.com 2008