An evocative old library on Republic Square, next to the Grandmaster's Palace. Only part of it is open to the public: you will need to take a passport or other photo ID to get in. The entire archives of the Knights of St. John from the Crusades in the 11th century until 1798 when Napoleon took Malta, are kept here, in true Maltese style in rickety wooden filing cabinets. They were proud to mention that recently a sprinkler system had been installed to protect this priceless collection.