Vatican Apostolic Library

One of the most valuable libraries in the world - formally established by Pope Sixtus IV in 1475, with holdings spanning 16 centuries. 75,000 manuscripts, 1.1 million printed books, the Bibliotheca Palatina, the library of Queen Christina of Sweden, the Codex Vaticanus with the oldest biblical text. Open only to accredited scholars - but a symbol of knowledge itself.