The Megalithic Passage Tomb at Newgrange, in Ireland, was built about 3200 BC. The kidney shaped mound covers an area of over one acre and is surrounded 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. It is estimated that the construction of the Passage Tomb at Newgrange would have taken a work force of 300 at least 20 years.
The passage and chamber of Newgrange are illuminated by the winter solstice sunrise. A shaft of sunlight shines through the roof box over the entrance and penetrates the passage to light up the chamber. The dramatic event lasts for 17 minutes at dawn on the Winter Solstice and for a few mornings either side of the Winter Solstice.
Admission to the Newgrange chamber for the Winter Solstice sunrise is by lottery, application forms are available at the Brú na Bóinne Visitor Centre. For the 2010 draw 25,349 applications were submitted. In September each year, 50 names are drawn with 2 places are awarded to each name drawn.
Megalithic mounds such as Newgrange entered Irish mythology as sídhe or fairy mounds. Newgrange was said to be the home of Oenghus, the god of love. The Passage Tomb at Newgrange was re-discovered in 1699 by the removal of material for road building. A major excavation of Newgrange began in 1962; the original facade of sparkling white quartz was rebuilt using stone found at the site.