Knowth passage tomb

Knowth (Irish: Cnobha) is the site of a Neolithic passage grave, one of the ancient monuments of the Brú na Bóinne complex in the valley of the River Boyne in Ireland.

Knowth is the largest of all passage graves situated within the Brú na Bóinne complex. The site consists of one large mound (known as Site 1) and 17 smaller satellite tombs.