What is it? Spain’s world-famous museum of art
Why go? Acquaint yourself with some of the best artists to have ever worked in Spain, plus other masters from across Europe. El Greco, Goya and Velázquez are all on the must-see list, including the latter’s stunning 'Las Meninas'. Frankly, that would be enough to satisfy most artistic appetites for an entire week, but if you have the stamina, it is also well-worth seeing Dürer's extraordinary 1498 'Self-Portrait', and the unparalleled collection of paintings by Hieronymus Bosch and… and… and… the list goes on, really. This is the big daddy of all the art galleries in the city, and it is unmissable.
Don't miss: All of the above.