Marinmuseum (Naval Museum) is Sweden's national naval museum, dedicated to the Swedish naval defense and preservation of the country's naval history. Marinmuseum is one of Sweden's oldest museums, established in 1752 when King Adolf Frederick began the collection and documentation of naval objects in what was called the Model Room (Modellkammaren). He also ordered the preservation of ship models and ship building machinery.
The rectangular building design includes a pier which extends into the water. Around the pier are several museum ships. A specially designed underwater tunnel with windows provides a way to view the wreckage of several seventeenth century ships.
Figureheads from Swedish ships are on display, including many that were made by sculptor Törnström, royal sculptor to the navy, who worked at the Karlskrona shipyard during the 1700s. These include the figurehead of the ship the Dristigheten. The Marinmuseums Archives include 4,000 drawings and maps, mostly relating to the Sweden's Naval history; there are also pictures, paintings, and models. Subjects include submarines, shipbuilding strategies, battle tactics, and life on board ships of the Baltic Sea.References:
The city walls of Avila were built in the 11th century to protect the citizens from the Moors. They have been well maintained throughout the centuries and are now a major tourist attraction as well as a UNESCO World Heritage Site. Visitors can walk around about half of the length of the walls.
The layout of the city is an even quadrilateral with a perimeter of 2,516 m. Its walls, which consist in part of stones already used in earlier constructions, have an average thickness of 3 m. Access to the city is afforded by nine gates of different periods; twin 20 m high towers, linked by a semi-circular arch, flank the oldest ones, Puerta de San Vicente and Puerta del Alcázar.