Rio Fortress

Also known as the Castle of Morias, lying next to the Rio-Antirrio bridge, on a seaside strategic location, the Fortress of Rio was a fortified structure built by Sultan Bayazit II to control the passage between the Gulf of Corinth and the Ionian Sea.
The Castle's external shape resembled an isosceles triangle, with its northern corner also surrounded by towers, almost touching the tip of the peninsula. Both of its other sides are coastal. On its southern side, beyond the wall and the towers, a wide moat filled with sea water acts as an additional defensive protection. In addition, the southern side features two outer bastions, joined to the main castle by stone bridges.
With its first fortification by the Ottomans dating back to 1499, it went through several phases and architectural and spatial remodelling. It has also fallen to and destructed by different peoples, but the Venetians gradually evolved it at the end of the 17th century shaping its final form.
Nowadays, with the ferry piers on its right and left sides, it can be visited and is used as a venue for cultural events.