Arguably one of the most famous museums in the world, the Museo del Prado boasts works by Diego Velázquez, Francisco Goya, El Greco, Titian, Peter Paul Rubens and Hieronymus Bosch among others. The collection of incredible artists which span centuries is considered to have the finest selection of Spanish art. This museum is a must during your time in Madrid not only for the cultural indulgence but also for the exploration of the fantastic architecture that can be found within the city.