Archaeological site Knowth in Laytown — Bettystown

You're standing at Knowth, a prehistoric tomb overlooking the River Boyne in County Meath, Ireland. Take a look at that huge grassy mound. It's about twelve metres high and sixty-seven metres across, covering roughly a hectare. People built it around 3200 BC, in the Neolithic. That makes it older than the pyramids. Around it sit seventeen smaller tombs, like chicks around a mother hen.