6Trinity College Library, Dublin, Ireland

Trinity College Library in Dublin is famous for its Long Room, a breathtaking chamber lined with towering shelves of ancient books.

This 18th-century library is Ireland’s largest and oldest, housing the historic Book of Kells, a lavishly illustrated manuscript dating back to the 9th century. The Long Room’s barrel-vaulted ceiling and rows of antique books create a mesmerizing atmosphere, evoking a sense of timeless wisdom.