The Tower of Castiglioncello was the first building built on the promontory of Castiglioncello and had function of defense and sighting of the raids of the Saracen pirates.
It was built by order of Cosimo I of the Medici family, in the same architectural style of the twin tower of Calafuria, that still preserves the original characteristics, since some battlements were added to the one in Castiglioncello, at the summit, when the Pasquini Castle was built in the XIX century.
