Newgrange, located in County Meath, Ireland, is another prehistoric monument that forms part of the Brú na Bóinne UNESCO World Heritage site. Built around 3,200 BC, it is one of the oldest and most famous passage tombs in the world, predating Stonehenge and the Great Pyramids of Giza. Newgrange is renowned for its large circular mound, which covers an area of over an acre, and its central passage leading to a chambered tomb.
One of the most remarkable features of Newgrange is its alignment with the winter solstice: each year, at dawn on the solstice, a shaft of sunlight penetrates the passage to illuminate the inner chamber, a testament to the ancient builders’ astronomical knowledge.