Prehistoric Solin and Sopalj castles
On the highest hills, over the Municipality of the Kostrena settlement, we can find the prehistoric Solin and Sopalj castles. Solin hill with remains of the archaeological site is located on the north-western edge of Kostrena, above the deep Martinšćica Bay and Sušačka draga valley. A great position from which a panoramic view opens up to the eastern parts of the city of Rijeka was occupied even at the end of the Neolithic Age, whilst the colony lasted during the Chalcolithic (during the fourth and third millennium BC). From the accessible part of the hill, the site was protected during the half of second millennium BC by semicircular wall...