The largest Mudéjar ensemble in Spain Curiosity · Cuéllar, Tierra de Pinares, Segovia Cuéllar brings together the greatest concentration of Mudéjar architecture in the country: San Andrés and El Salvador of the thirteenth century, San Esteban and San Martín of the twelfth, all raised in brick by master builders who worked here for generations. Photo: BigSus (CC BY 2.5) What to see and do in Cuéllar