Catanzaro, also known as the "City of the two Seas", is an Italian city of 86,183 inhabitants, the capital of the Calabria region and of its provin…Catanzaro, also known as the "City of the two Seas", is an Italian city of 86,183 inhabitants, the capital of the Calabria region and of its province and the second most populated comune of the region, behind Reggio Calabria.