Brú na Bóinne is a UNESCO World Heritage Site located in County Meath, Ireland. It features a complex of prehistoric monuments, including the famous passage tombs of Newgrange, Knowth, and Dowth. These structures date back to around 3200 BC, making them older than both Stonehenge and the Pyramids of Giza. The site is significant for its impressive architecture and its alignment with the winter solstice. During this time, sunlight illuminates the inner chambers of Newgrange, showcasing the advanced understanding of astronomy by the ancient builders. Visitors can explore the site and learn about its rich history and cultural importance.