Prado Museum guided tour
There’s almost always a long queue outside the Museo Nacional del Prado, but you can skip the line if you go on a guided tour. This world-famous museum has more than 20,000 artworks, including the largest collection of Spanish art in the world. Famous pieces include Diego Velázquez’s Las Meninas, The Garden of Earthly Delights by Hieronymus Bosch and a roomful of Francisco Goya’s hellish black paintings. Note that if you book the tapas option, you’ll head straight to a nearby bar afterwards to refuel.