Puente de los Roncaleses Monument · Yesa, Sangüesa, Navarra Image of Yesa, not of the place itself. The remains of a 12th-century stone bridge over the Aragón river, which reuses ashlar blocks of Roman origin at the base of some of its abutments. s. XII Photo: Basotxerri (CC BY-SA 4.0) What to see and do in Yesa