I’m definitely more of a Barca fan, but I would step into Madrid any day for its art, architecture, and food. And churros. All the churros.
Tour the official residence of the Spanish Royal Family
Reportedly some of the best chocolate churros in Spain
"Bocadillo de Calamares" is a specialty in Madrid
Museum of Spanish art, with major works by Picasso and Dalí
Home stadium of the Real Madrid football team