Neolithic art at Knowth passage grave. About 30% of the known examples of neolithic art in Europe are situated at Knowth, Newgrange and the other passage tombs in the Boyne valley.

This is one of the many kerbstones surrounding thr mound, which has an opposing twin-corridor layout. It was built before stonehenge and the pyramids, and has the most art of any neolithic monument. Christians had a good go at wrecking this place in about 1000 CE, but Newgrange remained undiscovered until the 1900s.