A place in Greece, Argostoli is an interesting place to visit, given its unique culture, history and character. The nearest major city to Argostoli is Corfu. Corfu, is a worth visiting city owing to its prime attractions like Achilleion, Sidari Beach, Old Fortress Corfu . Also, to reach Argostoli, you'll have to take a flight to Corfu; so its not really a detour. And even if it is, the city is worth paying at least a quick visit. 1-2 days is an ideal duration of visit to Argostoli.
Don't just take a trip, let the trip take you! Have a enjoyable time at Argostoli.