Saint Mary's Battery

Photo: http://www.cominoferries.com

Built by the Order of the Knights of Malta between 1715 and 1716.

Well entered in the register: National Inventory of Cultural Heritage of the Maltese Islands - National Inventory of Cultural Property of the Maltese Islands (NICPMI) 

00042              Batterija ta 'Santa Marija / St. Mary Battery

Look at the card "The Maltese Fortifications"