Top 10 Biggest and most beautiful libraries in the world + Where they are located! (With Pictures)

5. The Library of El Escorial | Spain

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This library is located in the Royal Seat of San Lorenzo de El Escorial, the historical residence of the king of Spain. The Escorial is a vast building complex in central Spain. The building is the most important architectural monument of the Spanish Renaissance. Construction of El Escorial began in 1563 and ended in 1584. Phillip II was responsible for adding the library and most of the books originally held within. The vaulted ceilings were painted with gorgeous frescoes, each representing one of the seven liberal arts: rhetoric, dialectic, music, grammar, arithmetic, geometry and astronomy.