Aerial pullback above old historic Roman bridge crossing Navea River

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