Thanks to a generous donor, this palace once welcomed the sick and the poor and now hosts a major research library.
Once a neglected relic, now a carefully restored prize that's hard to get to, Brussel's Bibliothèque Solvay is an enigmatic jewel.
Named after Sir Banister Fletcher, the library of the Royal Institute of British Architects is among the world's largest dedicated to architecture.
Combining modern elements with a respect for classical proportions, the design of the Canadian Centre for Architecture reflects its mission as an universal archive of the art.
Spanning four centuries of learning inside a former 19th century chapel, the library of the Québec Seminary is the keeper of a rich encyclopedic collection as old as the city itself.
The ETH Zürich's architecture library on the Hönggerberg is a mecca for architecture lovers in Switzerland and abroad.
Long hidden behind drab ceiling tiles, the unveiling of the former chapel at Collège Jean-de-Brébeuf in Montréal in 2004 also marked the renaissance of one of the oldest libraries on the continent.