Tour de Giraglia

The Tour de Giraglia () is a Genoese tower located in the commune of Ersa (Haute-Corse) on the island of Giraglia near the north coast of Corsica. The tower sits near the northern tip of the island, from the lighthouse at a height of above the sea.
The construction of the tower began in April 1584. It was one of a series of coastal defences constructed by the Republic of Genoa between 1530 and 1620 to stem the attacks by Barbary pirates. The design of the Giaglia tower is unusual in being square rather than round. The tower is owned by the French state and in 2008 was listed as one of the official Historical Monuments of France.