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#ancienttechnology #ancientstructure #archaeological Newgrange is a prehistoric monument in County Meath, Ireland, about one kilometer north of the River Boyne. It was built about 3200 BC, during the Neolithic period, which makes it older than Stonehenge and the Egyptian pyramids. The site consists of a large circular mound with an inner stone passageway and chambers. The mound has a retaining wall at the front, made mostly of white quartz cobblestones, and it is ringed by engraved kerbstones. Many of the larger stones of Newgrange are covered in megalithic art. The mound is 76 meters across and 12 meters high, and covers 4,500 square meters of ground. Within the mound is a chambered passage, which may be accessed by an entrance on the southeastern side of the monument. The passage stretches for 19 meters or about a third of the way into the center of the structure. On the shortest day of the year, the roof of a stone passage allows sunlight to penetrate into a room in the mound, suggesting the structure h