Newgrange is a Neolithic passage tomb in County Meath, built around 3200 BC, making it…

Newgrange is a Neolithic passage tomb in County Meath, built around 3200 BC, making it older than Stonehenge and the Great Pyramid of Giza. It’s a massive circular mound 85 metres wide and 13 metres high, with a narrow passage leading to a central chamber at its heart. The whole structure is aligned so that at dawn on the winter solstice, a beam of sunlight enters through a small opening above the entrance and slowly fills the chamber with light for around 17 minutes, a feat of astronomical engineering that still works perfectly more than five thousand years later. The stones at the entrance are covered in spiral and lozenge carvings that match the megalithic art found at Gavrinis in Brittany, a reminder that the Neolithic peoples of the Atlantic coast were building and thinking in dialogue with each other long before anyone drew borders on the map.​​​​​​​​​​​​​​​​