The bridge over the Alagón Monument · San Esteban de la Sierra, Sierra de Francia, Salamanca The village preserves a bridge over the Alagón that everyone calls Roman although it is of medieval fabric, probably a reconstruction of the original. The centre keeps the layout of the Jewish quarter that gave rise to it, with adobe and timber houses on slopes down to the river. Photo: pacorro39 (CC BY-SA 3.0) What to see and do in San Esteban de la Sierra