Castile and León

Castile and León is a region of northwestern Spain, consisting predominantly of a high plateau ringed by mountains. Salamanca is known for its 12th-century university, Renaissance churches and baroque Plaza Mayor. Segovia's ancient Roman aqueduct has more than 160 arches, and the hilltop Alcázar castle overlooks the city. Ávila is encircled by an 11th-century fortification wall with 82 semicircular towers.