The church and tower of the dukes Monument · La Alberca, Sierra de Francia, Salamanca Image of La Alberca, not of the place itself. The church of Nuestra Señora de la Asunción was completed in 1733, the same year as the new cathedral of Salamanca, and holds a polychrome granite pulpit from the sixteenth century. Its tower, paid for by the first Dukes of Alba, is two centuries older. Photo: Fedoce1 (Fernando Domínguez Cerejido) (CC BY-SA 4.0) What to see and do in La Alberca