Capitolo a parte merita la storia della famosa Torre Marconi.

On the top of the peninsula of Sestri Levante in a strategic position existed a spin-tower of the 13th century. Gualino, invited his friend Guglielmo Marconi, to the castles and gave to the scientist, Nobel priced, the possibility to make many experiments between 1932 and 1934. On 30 July 1934 Guglielmo Marconi, at the presence of technicians, officers of the Italian and English Navy and many newspaper writers, managed with success his experiment on blind navigation. In particular, the boat Elettra left the port of Santa Margherita and sailed to Sestri Levante. The boat dribbled through boes and entered the port with big precision driven only by the signals sent from a radio-beacon installed on the promontory.