Museo del Prado
Visiting museums may not be one of your favorite activities... However, you should know that the Museo del Prado houses one of the most important collections of paintings in the world (more than 7,000) and is one of the jewels of the city. It's rich in paintings by European masters from the 16th to the 19th centuries, including Velázquez, Goya, El Greco, Tiziano, Rubens and El Bosco.