Bodleian Library, Oxford, UK
It is one of the most iconic libraries in the world, located at Oxford University. The hidden rooms and ancient archives give it a sense of mystery. It also houses the Divinity School, home of magic.
Vatican Secret Archives, Vatican City
Although not a public library, here, the archives are stored in a huge underground room. It holds top-secret files and historical documents, making it a mystery to the world.
John Hay Library, Brown University, USA
Another University library with a known collection of Unusual Books and includes books that have human skin as their binding. With a variety of rare collection, it remains as one of the more mysterious libraries in the world.
Dunhuang Library Cave, China
This library is situated in a cave with historical manuscripts and other artefacts that remained undiscovered for centuries. The library was only discovered in 1900.