Newgrange is a Stone Age monument located in the Boyne Valley, County Meath, Ireland.
Newgrange is a large kidney shaped mound covering an area of over one acre, retained at the base by 97 kerbstones, some of which are richly decorated with megalithic art. The 19 metre long inner passage leads to a cruciform chamber with a corbelled roof. The amount of time and labour invested in construction of Newgrange suggests a well-organized society with specialised groups responsible for different aspects of construction.
Newgrange was built by a farming community that prospered on the rich lands of the Boyne Valley. Knowth and Dowth are similar mounds that together with Newgrange have been designated a World Heritage Site by UNESCO.
Newgrange is best known for the illumination of its passage and chamber by the winter solstice sun. Above the entrance to the passage at Newgrange there is an opening called a roof-box. This baffling orifice held a great surprise for those who unearthed it. Its purpose is to allow sunlight to penetrate the chamber on the shortest days of the year, around December 21st, the winter solstice. The accuracy of Newgrange as a time-telling device is remarkable when one considers that it was built 500 years before the Great Pyramids.
For more information on visiting Newgrange, click here; http://www.newgrange.com/visitor.htm