The Roman bridges of the Curueño Monument · Valdelugueros, La Montaña de Riaño, León The municipality preserves eight bridges of Roman origin over the Curueño and its tributaries, remodelled in medieval times; among them stands out the one called Puente del Ahorcado, in a valley that still keeps two restored flour mills. Photo: Leitzaran (CC BY-SA 4.0) What to see and do in Valdelugueros