Over 30,000 people applied - but only 16 will be in the chamber at Newgrange when the sun rises this morning. (08.54)
Today is the winter solstice - when the sun is over Capricorn - and if visitors are lucky will shine directly into the stone age chamber in the Boyne Valley.
The passage tomb was constructed 5,000 years ago and is a UNESCO World Heritage site.
Thousands of people are expected to descend on the Meath location for the shortest day of the year - but only the lucky lottery winners will be inside the historic chamber.