In line view of old Roman Navea bridge covered in moss and vines

line old roman navea bridge covered moss vines 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 no people nobody