During the period of British occupation of the Ionian Islands, Kefalonia's governor, General Sir Charles James Napier, constructed a wooden bridge across the lagoon.

Along the Piccolo Gyro, in the Vlikha area facing Lixouri, lie the ‘Swallow Holes’ of Katovothres, a geological phenomenon.

Buildings that weren't shattered by German bombing in 1943 were destroyed in 1953 by the earthquake that razed virtually all of Kefalonia, apart from the Fiskardo area, to the ground.

Opposite the Archaeological Museum of Argostoli are the law courts, originally constructed by the British with stone from the Cyclopean site at nearby Krani.

Along Lithostroto, next to the Catholic Church, is a tiny museum (open some mornings and most evenings) dedicated to the soldiers of the Acqui Division.

Argostoli has a hot-summer Mediterranean climate (Köppen: Csa) with hot, dry summers and cool, rainy winters.Argostoli is twinned with: