8Methoni Castle (Peloponnese)

Located in the southwestern Peloponnese, Methoni Castle is one of the largest and most impressive fortresses in Greece. 

Built by the Venetians in the 13th century, it extends into the sea and features massive stone walls, a stunning entrance bridge, and an iconic octagonal tower known as the Bourtzi. The combination of history and scenic coastal views makes Methoni Castle a must-visit.