Kylemore Abbey, Co. Galway, Ireland - a magical mountainside place. Once a castle, now a Benedictine nunnery (founded in 1920), just off N59 in the northwestern Irish countryside (right near the entrance to Connemara National Park).
Clifden Castle (ruins), Clifden, co. Galway, Rep. of Ireland. Built around 1750 by John d'Arcy. Incredible ruins inside, and beautiful. Lovely little hike to it with horses that are very inquisitive :o)