MNN Galleries

20 of the most beautiful libraries in the world

By: Melissa Breyer on Nov. 15, 2017, noon
Trinity College Library

Photo: Irish Welcome Tours/Flickr

9 of 22

Trinity College Library, Ireland

When completed in 1732, the library at Trinity College in Dublin had a flat plaster ceiling; but as its prodigious collection grew, expansions were required. In 1860, the roof was raised to allow construction of the present barrel-vaulted ceiling and upper bookcases. Thousands of rare and very early books and artifacts are housed here, including the "Book of Kells" and the Brian Boru harp, a medieval Gaelic harp from which the national symbol of Ireland was derived.