The château du Brest – architectural-historical monument, whose construction began in the III century by the Romans and lasted almost until the seventeenth century, when the castle was fortified by the famous French engineer fortifier Marquis Sebastian Le Prêtre de Vauban.

In different years the château du Brest and became a Royal residence, and even a prison. During the Second world war, the castle was partially destroyed, but then completely restored. Since 1923, the castle has the status of a historical monument of France.

The castle complex consists of seven towers, which are interconnected. Inside this stone ring is another fortress with underground casemates and a chapel. The thickness of the walls reaches 12 meters. In the southern part of the castle are remains of masonry, made by the Romans. Inspection of the castle to begin with towers Magdalena, from the upper level which offers a beautiful view of the city.

The castle is situated on the banks of Penfield, opposite him is another famous urban consolidation – Tanguy tower with the Museum of the history of Brest until 1939. Part of the castle is closed to the public as it hosts the headquarters of Maritime command and the naval Prefecture. Perhaps the castle is the world's oldest valid military target.

In another part of the castle houses the national Maritime Museum. Within its walls is stored navigation instruments and model ships, paintings of seascapes, sculpture famous sailors, wooden figureheads that adorned the court. Some of the exhibits on display in the open before the walls of the castle. Just like Maritime museums in the country five, four are located in the cities of Toulon, Rochefort, Port-Louis and in the capital of France.