The Bodleian library is the working library of the University of Oxford and it dates back as a research library to 1600. The different doorways you can see represent the different schools (grammer, metaphysique, math...) that made up the subjects of olden days studies. Behind the statue is the divinity school, the oldest examination hall of Oxford dating back to 1488, which featured in the Harry Potter movies as Hogwart's infirmary.