Brittany's burly beacons: The lighthouses of France's Iroise Sea
Located just off Brittany, France's Iroise Sea has the largest concentration of lighthouses in the world. Almost all have been classified as historic monuments. These silhouettes of stones were nicknamed "lighthouses of hell" by their guardians because of the strong currents surrounding them. Built more than a century ago, they are no longer inhabited, but continue to fascinate locals and visitors alike. FRANCE 24 takes you on a tour of this maritime heritage.