The site is a complex of Neolithic mounds, chamber tombs, standing stones, henges and other prehistoric enclosures, some from as early as 35th century BC - 32nd century BC. The site thus predates the Egyptian pyramids and was built with sophistication and a knowledge of science and astronomy, which is most evident in the passage grave of Newgrange. The site is often referred to as the "Bend of the Boyne" and this is often (incorrectly) taken to be a translation of "Brú na Bóinne". The associated archaeological culture is often called the Boyne culture.