Biblioteca Infanta Elena, Seville, Spain

Cruz y Ortiz
Date Built
The Infanta Elena Library is located on the site of the Ibero-American Exposition of 1929 between what was the Pavilion of the USA and the Pavilion of Peru.  It was designed by the architectural practice of Cruz y Ortiz and opened in 1999 by the Infanta Elena, Duchess of Lugo. 

Wikipedia says of the building that, "...The two-story building conceals an interior courtyard, invisible from outside, which provides a second source of natural light for the reading rooms. The courtyard itself can be used as an open-air reading room.  The structure defines a C-shaped space with the rooms fully open to the interior façade. The two floors have a combined area of 5,000 square metres (54,000 sq ft).  The building is built of exposed brick and black metalwork. The ground floor is almost entirely open to the outside, while the first floor is taller and has a denser appearance. This is where the exposed brick is used. The roof is made of zinc that slopes slightly inward to the courtyard."