Newgrange

A 5,000-year-old passage tomb where sunrise on the Winter Solstice illuminates the inner chamber in a breathtaking display of ancient astronomical mastery.

Knowth

A monumental Neolithic mound with twin equinox-aligned passages and over half of Western Europe’s surviving megalithic art carved into its kerbstones.

Loughcrew Cairns

Trim Castle

Trim Castle