Fonte de Santa Marinha

Century bridge trestle Board on two arches of volta redonda. Very nice specimen of rustic flavour.

Built on the milestone for mile XXVII told from Bracara Augusta.

A collection of milestones, some dating from Titus Domitian, Nerva, Trajan, or Hadrian. Here, one can read miles XXXIII, XXXIIII, XXXV, or XXXVI, counted from …

This is the earliest known structure of harnessing kinetic energy the waters of rivers and streams.