Perinaldo is a comune in the Province of Imperia in the Italian region of Liguria, located about 120 kilometres southwest of Genoa and about …Perinaldo is a comune in the Province of Imperia in the Italian region of Liguria, located about 120 kilometres southwest of Genoa and about 30 kilometres west of Imperia. It is one of I Borghi più belli d'Italia. It is the birthplace of the 17th-century Italian naturalised French astronomer Giovanni Domenico Cassini.