Baghdad House of Wisdom

The Baghdad House of Wisdom is a massive hidden library in Baghdad, Iraq that exclusively contains books relating to the practice or study of magic. Currently, it has a total of 131,000,600 books in its collection

Structure
The Baghdad House of Wisdom does not exist in physical space, only being accessible by secret entrances and teleportation. It contains numerous chambers containing tens of thousands of books each. It also features enchanted skylights and flameless lanterns for lighting.

Contents
The Baghdad House of Wisdom is the foremost collection of books pertaining to the practice and study of magic. Books here contain instructions on the performing of over a million different workings of magic, as well as information on numerous magic-related subjects.

Policies
The Baghdad House of Wisdom does not allow the removal of volumes in its collection from its premises. In fact, warding makes the removal physically impossible. Patrons are provided paper to transcribe information.

Staff at the Baghdad House of Wisdom do not inquire about what requested information may be used for, but known dark mages will be banished accordingly. The establishment has its own security force, the Himaat Almaerifa (Protectors of Knowledge).

History
The Baghdad House of Wisdom was founded alongside the establishment of Baghdad in 762 AD. It originally held knowledge of many different subjects, with a seperate section devoted to the study of magic located underground.

The House of Wisdom remained that way until 1258 AD, when the city of Baghdad was raided my Mongol hordes led by Hulagu Khan. The upper part of the House of Wisdom was destroyed, but the magic-dedicated section was able to be concealed by a powerful glamour. It was abandoned, with most of its tomes left on its shelves.

The structure remained abandoned until Baghdad's recapture by the Ottoman Turks in 1534 AD. The surviving parts of the library were expanded upon and converted into an establishment dedicated only to magic by the mage Vadim.