Photo of the main mound at Knowth, the enfilade of stones, some of which are engraved with spirals.

Photo of the western entrance of the main mound at Knowth. There are two standing stones, with lots of pieces of quartz on the ground.

Photo of a decorated stone surrounding the main mound at Knowth. Above the stone is a protective wall installed during restoration work, allowing visitors to see the stone. Sand martins have built their nests above, and there is a hole in the layer of soil and sand above.

Photo of Knowth, the exterior of the Neolithic tomb. On the left is the large mound, surrounded by several satellite tombs.