Many stones around Newgrange, Knowth, and Dowth have spiral and geometric carvings ... group of 100 people to visit Newgrange on the winter solstice. This special tour only happens in the morning ...
As the winter sun rises above the horizon on Solstice Day, an extraordinary phenomenon takes place: a beam of golden sunlight shines inside Newgrange ... engraved with spiral motifs and lozenges ...