stone construction of old roman bridge in the middle of nature, pedrogão pequeno portugal

construction portugal pedrogo pequeno ancient highway bridge middle nature modern stone roman trail wild old historical arch famous rustic river zezere engineering historic medieval valley architecture old landmark wall perspective grass natural plant scenic environment summer outdoor green landscape modern herbs nature wild highway bridge roman ancient construction stone countryside travel trip backpacking trail tourism vacation destination figueiro vinhos serta pequeno grande pedrogao portuguese portugal europe