Chief among Oxford's many academic and architectural attractions is the unique Bodleian Library, which is spread throughout several buildings across the city. The central core of this collection of buildings is set in Radcliffe Square, and includes the historic Duke Humfrey's Library, dating from the 15th century, and the Divinity School with its magnificent Gothic vaulted ceiling, which is open to the public. Only members can use the reading rooms of this library, which contains a copy of every book printed in Britain since 1610, and no books are ever loaned out. Guided tours are available to view the main buildings. The library hosts many fantastic exhibitions and events and it is worth checking what's on during your visit to Oxford.