Old submarine in Castle or Chateau of Brest. It is a medieval fortress in the seaport of Brest nowadays the Maritime Museum.Brest; Brittany; architecture; building; chateau; city; cloudy; defense; europe; exhibition; finistere; fort; fortress; france; harbor; harbour; heritage; historic; history; landmark; maritime; medieval; military; monument; museum; nautical; naval; old; outdoors; port; rainy; roadstead; seaport; ship; submarine; tourism; travel; vessel; war;