Knowth is a Neolithic passage grave in Ireland Knowth is a Neolithic passage grave and an ancient monument of Bru na Boinne in the valley of the River Boyne in Ireland, UNESCO World Heritage Site Copyright: xZoonar.com/RudolfxErnstx 13698679

Royalty-Free Standard Commercial licenses are granted for worldwide, non-exclusive and perpetual use, unless specifically noted otherwise. All Royalty-Free transactions are final. The Royalty-Free Standard Commercial license has no limitations and covers up to 15 users.