It was built because of the fight against piracy. Initially it was built beside the sea, but today, because land has been artificially recovered, it appears slightly separated from the water. Ít is in the north of the island, situated next to the port. It served as a defence during the 16th century to protect the city from attacks by English and Dutch pirates and from this comes its old name: the Fortress of Light. It was opened to the public in the sixties. Since then it has been used as a cultural centre and Naval Museum for the city.