Kefalonia is home to the highest mountain in the Ionian islands. The mountain is named Ainos and its altitude is 1, 628 metres. The biggest town on the island is Argostoli which is the capital of the Kefalonia prefecture. The second biggest town is Lixouri which is located opposite Argostoli. Beside Kefalonia is the island Ithaca, the place of birth of ancient hero Odysseus. Some archaeologists believe that Kefalonia is the place of birth of Odysseus.