Newgrange is of the oldest buildings in the world constructed during the Neolithic period 3200BC making it older than Stonehenge and the Egyptian Pyramids.
There is a tomb made up of a long narrow passage with 3 small at the end.
A large stone at the enterance and also other stones inside the tomb are decorated with spiral / shaped designed.
It shares many simalarities with other Neolithic constuctions in Western Europe , such as Maeshowe in Orkney , Scotland and the Bryn Celli Ddu.
It is the most famous monument within the Neolithic Brú na Bóinne comolex alongside the similar passage tomb mounds of Knouth and Douth.
Michael J. O'Kelly, who excavated Newgrange, felt that the workforce involved in building Newgrange would have been divided up into about six gangs or teams, each with its own set of tasks and area of expertise.
Because Newgrange sits atop a ridge, many of the large slabs would have needed to be brought uphill, again suggesting a highly organised community was behind its construction.
A total of 19 stones belonging to satellite sites near Newgrange contain decoration.
There is some debate as to whether the so-called "Great Circle" was ever a complete circle at all. There are 12 surviving standing stones around the mound of Newgrange out of a possible original 35 to 38 orthostats.
On the 21st of December ( the winter solstice ) the sun streams through the roof box over the door sending light into the main burial chamber.
Newgrange is a prehistoric monument in Co.Meath , Ireland located about one kilometer north of the River Boyne.
Excavation of the monument yielded numorous finds outside its curb ,including 1,000 flint artifacts and 247 pottery objects, other finds were of stone,bone,glass and metal roman coins.
Correctly deducing from Roman Coins found near the top of the mound, Vikings couldn't have constructed it.