Bridge over the Cinca in Monzón Monument · Monzón, Cinca Medio, Huesca Image of Monzón, not of the place itself. The medieval bridge over the Cinca between Monzón and Castejón del Puente measured more than 400 metres with twenty-one arches of fifteen metres' span; a confraternity of San Salvador collected the toll and watched over its upkeep and safety. Today twelve of its piers survive. Photo: pere prlpz (CC BY-SA 3.0) What to see and do in Monzón