The ethereal image of the multi-domed Basílica del Pilar reflected in the Río Ebro is a potent symbol of Zaragoza, one of Spain’s most underrated regional capitals. There's plenty more fine architecture here too, including a turreted castle with an interior like a mini-Alhambra, and some very creatively displayed underground Roman remains, but Zaragoza's appeal goes well beyond its monuments. Spain’s fifth-largest city (and home to more than half of Aragón's 1.3 million residents), it has one the best tapas and bar scenes in the country and is well stocked with the epoch-defining art of local lad Francisco de Goya, the genius painter who was born a short horse ride away in 1746.