Knowth

Knowth (/ˈnaʊθ/; Irish: Cnóbha) is a prehistoric tomb overlooking the River Boyne in County Meath, Ireland. It comprises a large passage tomb surrounded by 17 smaller tombs, built during the Neolithic era around 3200 BC. It contains the largest assemblage of megalithic art in Europe. Knowth is part of the Brú na Bóinne complex, a World Heritage Site that also includes the similar passage tombs of Newgrange and Dowth. After its initial period of use, Knowth gradually became a ruin, although the area continued to be a site of ritual activity in the Bronze Age. During the early Middle Ages, a royal residence was built on top of the great mound, which became the seat of the Kings of Knowth or Northern Brega. Archaeologist George Eogan led an extensive investigation of the site from the 1960s to 1980s, and parts of the monument were reconstructed. The large mound has been estimated to date from c. 3200 BC. The mound is about 12 metres (40 ft) high and 67 metres (220 ft) in diameter, covering roughly a hectare. It contains two passages placed along an east–west line and is encircled by 127 kerbstones, of which three are missing, and four badly damaged.