The Castelo Velho (Portugese for old castle) is probably a sun/fire sanctuary used in the late Neolithic and the early Copper Age. It is situated on a high plane over the two rivers Douro and Cóa. The sanctuary forms a stone ring with the remains of a massive tower in the centre of the ring. Outside the ring some smaller stone circles/rings can be found. These look like archaic fireplaces.
Published on September 10, 2019 14:37
