Argostoli is the capital of Kefalonia, the largest of the Ionian islands. Sights include: the ruins of the Venetian castle "Agios Georgios", the 17th century monastery "Agios Andreas" with interesting frescoes and the remnants of the ancient city of Krani, which was the island's capital in the Mycenean age. The main attraction of the islands are, however, the "Sea Mills", which are not far from the town. They are driven by sea-water surging along a channel cut through the rock and then disappearing into hidden underground passages. For many years where the water went was a mystery until scientists finally discovered that the water flows through caves below the island before re-emerging on the east coast of the island.
