It may be a five-minute stroll from The Westbury Hotel to Trinity College but the route is paved with history. Tread the very cobbles Swift, Beckett and Wilde once walked, pass the statue of Molly Malone, heroine of the historic song, take in Grafton Street, Dublin's 18th century hub, to reach the imposing doors of the 1592 building. Ireland's ancient university houses many treasures, but the breathtaking 9th-century illuminated Book of Kells is one of the literary glories of the world. Miraculously recovered from burial at the time of the Vikings, the venerable tome lives in the awe-inspiring Long Room, the world's largest single-chamber library. A visit once made is truly never forgotten.