Trinity College Library (the 'Long Room'), Dublin. There has been a library at the College ever since it was founded (in but the Long Room was not begun until Completed in it is the largest library in Ireland, containing books.
A great place to curl up. I've always dreamed of having an indoor library as a room in my future home. Comfy chairs, coffee table, shelves upon shelves of books, open backyard window, NO tv in that room.