The below list will of course continue to grow, but for now, here is a selection of Irish sacred sites with astronomical alignments on Winter Solstice. Click on the site name for detailed information.
Ardamore Askillaun Baltray Baurgorm Baurgorm SW Beltany Tops Boleycarrigeen Cabragh Cappaboy Beg Carriganimmy Clodagh Cloghboola Beg Corstown; Cairn N Cullomane East Currabeha (North) Derryinver Dowth Dromgarvan Drombeg Gleninagh Glenleigh Grousemount Illane Inchybegga Killadangan Kippagh Knockaneirk SW Knockroe Knowth: Site 15 Lackan Laharankeal Lettergorman South Malin More Maughanaclea NE Moylehid Newgrange Patrickstown; Cairn X1 Reananaree Rush Site Q; Dowth Slieve Gullion Teergay Trawlebane