DUBLIN, TRINITY COLLEGE: The Georgian Exam Hall, where examinations are still given. Many tourists head straight for the old library building, where the Book of Kells, the most famous of illuminated Medieval manuscripts, is displayed. Visitors interested in books should also head upstairs to view the amazing collection of rare books in the stunning "Long Room." Photography is not allowed inside the library, but there are lots of postcards and other memorabilia for sale.