In front of the building, there's a big sign that says The Book of Kells.
The library of Trinity College Dublin permanently houses this masterpiece of medieval art and Ireland's greatest cultural treasure, created around 800 AD by Celtic monks.
It contains the four Gospels of the Christian New Testament written in Latin.
It features lavish, intricate, and colourful illustrations, including Celtic knotwork, plants, animals, and human figures.
Built as an altar showpiece rather than a reading text, its profound visual impact led medieval writers to describe it as the "work of angels".