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.
"Trinity College Library, Dublin - the smell of old books is amazing : )" Is there anything as beautiful as a library? And just think, at this point if you started reading that library, you would not live to finish it. At least, not at my speed.
A true gem that has survived several centuries is the Book of Kells, an illuminated manuscript expertly crafted by monks around the year Currently, you can see four pages of the Book of Kells underneath the library at Trinity College.