The Philological Library (German: Philologische Bibliothek) is the newest component of the "Rust and Silver Lodges" complex in the main campus of the Freie Universität Berlin. It was designed by internationally known architect Norman Foster, Baron Foster of Thames Bank in the shape of a human brain, and opened in 2005. The library merges the separate smaller libraries of the departments and institutes of humanities and now contains:

General and Comparative literature

Byzantine/ Modern Greek studies

English studies

German studies

Comparative and Indo-European Linguistics

Classics

Dutch Linguistics and Literature

Indian Linguistics and Literature/ South Asian Studies

Latin American Studies

Medieval Latin Language and Literature

Philosophy (since 2007)

Romance studies

Slavic studies

It has become the centerpiece of the university's Dahlem campus and a Berlin architectural landmark.