Scoglio Formiche di Grosseto Lighthouse Italian: Faro delle Formiche di Grosseto is an active lighthouse established on the largest of three skerries located 9 nautical miles south west of Marina di Grosseto.
Wikipedia https://en.wikipedia.org/wiki/Scoglio_Formiche_di_Grosseto_Lighthouse
Coordinates 42°34'38.151" N 10°52'54.713" E