|Newgrange is a prehistoric monument called a passage tomb.
It is a large roughly circular mound covering an area of about half a hectare. It is retained at the base by 97 kerbstones, some of which are richly decorated with megalithic art. A 19m long stone passageway leads into a chamber with a stone roof.
It was built about 3200 B.C. duing the Neolithic period, which makes it older than Stonehenge and the Egyptian pyramids. It is aligned on the winter solstice when once a year light floods into the inner chamber probably to 'wake' the remains of the ancestors.