Satellite map of De Redin towers
The De Redin Towers are a series of small fortified watch towers that Grandmaster Martin de Redin of the Order of Saint John built on the Maltese islands between the years 1658 and 1659. There are 13 on Malta and 1 on Gozo. The towers are in sight of each other, and provided a communication link between Gozo and Grand Harbour, in addition to functioning as watchtowers against attack by Corsairs.
Latitude: 35° 49' 28.20" N
Longitude: 14° 26' 23.64" E