Joe and Rika Mansueto Library, University of Chicago Architect Helmut Jahn topped off this year-old library (which goes five stories underground) with an elliptical glass dome that lets in ample sunlight.
The National Library of Brazil Another amazing library of Rio, the National Library of Brazil was constructed back in 1810 and has since become the largest library in Latin America and the largest in the world.
Library of Alexandria, located in Egypt. This biblio-heritage library with this sleek granite building. The circular structure, designed by Norwegian firm Snøhetta, is covered in carvings done by local artists and sits next to a large reflecting pool.