The Museo del Prado is a museum established on 19 November 1819, located in Madrid. It is one of the biggest and most important museums in the world. Its collection includes works of European artists, from the 12th to the 19th century. It was founded as a museum for paintings and sculptures, but also contains other types of works of art. The collections include many works of Francisco de Goya, Diego Velázquez, El Greco, Titian and Peter Paul Rubens and Hieronymus Bosch. In 2012, about 2.8 million people visited the museum. Some of the most famous paintings in the museum include: Las Meninas, The Garden of Earthly Delights, The Third of May 1808, and La Maja Desnuda. The architects that constructed the museum are Rafael Moneo and Juan de Villanueva.