Walk along middle ages Navea bridge with sun flare as grass grows between cracks

walk middle ages navea bridge sun flare grass grows cracks 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 roman historical old brick stone architecture