The Prado Museum is one of the most important art galleries in the world and is located in Madrid in Spain. There are exhibited works by major Italian, Spanish and Flemish artists, including Beato Angelico, Andrea Mantegna, Raffaello Sanzio, Hieronymus Bosch, Rogier van der Weyden, Bruegel the Elder, El Greco, Pieter Paul Rubens, Titian, Diego Velázquez, Francisco Goya . The building that houses the Prado Museum was commissioned by Charles III of Spain, as the Gabinete de Historia Natural, together with a series of scientific institutions located in the redevelopment project called Salón del Prado. To this end, Charles III was able to rely on one of his favorite architects, Juan de Villanueva, author, as well as the seat of the Museum, of the nearby botanical garden. The architectural project of the current picture gallery was approved in 1786 by Charles III, proving to be the culmination of Villanueva's career and one of the peaks of Spanish neoclassicism, although, given the long duration of the works and subsequent modifications, the final result would be quite different from the design. initial.