The Archaeological Museum of Argostoli holds the most important collection of antiquities from Cephalonia, covering the island's long history from prehistoric times through the Roman period. The Mycenaean collection is particularly strong: bronze weapons, jewellery, vases, and objects recovered from chamber tombs demonstrate that Cephalonia was a prosperous and well-connected Bronze Age settlement. Some researchers have connected the island's Mycenaean remains to the legends of Odysseus, who is said to have been king of this region.
The museum also holds Classical and Hellenistic material from the island's ancient city-states, including objects from the nearby site of Cranii. It's a modest-sized museum — you can see everything in an hour — but the quality of the Mycenaean material is genuinely impressive. Located a few blocks south of the main square, just off Vergoti Street.