Zaragoza is the capital of northeastern Spain's Aragon region. Overlooking the Ebro River in the city center is baroque Nuestra Señora del Pilar basilica, a famous pilgrimage site with a shrine to the Virgin Mary and multiple domes. Mudéjar-style landmarks, combining Islamic and Gothic architecture, include the Aljafería, an 11th-century Moorish palace, and the Cathedral of the Savior, begun in the 12th century.

Spain, a country on Europe?s Iberian Peninsula, includes 17 autonomous regions with diverse geography and cultures. Capital city Madrid is home to the Royal Palace and Prado museum, housing works by European masters. Segovia has a medieval castle (the Alcázar) and an intact Roman aqueduct. Catalonia?s capital, Barcelona, is defined by Antoni Gaudí?s whimsical modernist landmarks like the Sagrada Família church.