Old Roman bridge along Via Nova In Ourense Galicia Spain, sideview establish

old roman bridge via nova ourense galicia spain sideview establish san xoan de rio navea bridge mino sil valley middle ages antonino via nova antonine itinerary geira roman road leafless barren scraggly bracara augusta asturica augusta roman mile astorga braga overview vespasian titus commercial purpose julius milestones mansio post station lodging route conserve historical brick stone architecture space for text copy space