The St. John Fortress is a complex monumental building on the southeastern side of the old city port, controlling and protecting its entrance. The first fort was built in the mid-14th century, but it was modified on several occasions in the course of the 15th and 16th centuries, which can be seen in the triptych made by the painter Nikola Božidarević in the Dominican monastery. The painting shows Saint Blaise, the patron saint of Dubrovnik.
Dominant in the port ambiance, the St. John Fortress prevented access of pirates and other enemy ships. Always cautious at the first sign of danger, the inhabitants of Dubrovnik used to close the entry into the port with heavy chains stretched between the St. John Fortress and the Kase jetty, and they also used to wall up all the port entries to the Great Arsenal.
Today, the fortress houses an aquarium on the ground floor, stocked with fish from various parts of the Adriatic Sea. On the upper floors there is an ethnographic and a maritime museum devoted to the Republic Maritime Period, the Age of Steam, the Second World War, and the section of techniques of sailing and navigation.
References:The Château du Lude is one of the many great châteaux of the Loire Valley in France. Le Lude is the most northerly château of the Loire Valley and one of the last important historic castles in France, still inhabited by the same family for the last 260 years. The château is testimony to four centuries of French architecture, as a stronghold transformed into an elegant house during the Renaissance and the 18th century. The monument is located in the valley of Le Loir. Its gardens have evolved throughout the centuries.