The Newgrange Dolmen, located in County Meath, Ireland, is one of Europe's finest examples of this type of tomb, known as a corridor dolmen. It dates back to around 3200 BC, 500 years before the Great Pyramid of Giza in Egypt and almost 1,000 years before Stonehenge in England. The site consists of a circular tumulus 85 metres in diameter, inside which the burial chamber is reached via a 19-metre-long passageway. Among Newgrange's many features, the illumination of the burial chamber by the glow of the sun's rays is certainly the most famous. Every year, on the winter solstice on December 21, at 9:17 a.m., the sun shines directly into the central chamber for around 15 minutes.