The National Library of Spain, also known as the Biblioteca Nacional de España (BNE), is the largest library in Spain and one of the most important cultural institutions in the country. Founded in 1712 by King Philip V, the library's collections have grown to become a treasure trove of knowledge and cultural heritage, encompassing over 26 million items. The BNE's holdings include books, manuscripts, prints, photographs, maps, music scores, sound recordings, and other items related t...