Karjohansvern was the main base for the Royal Norwegian Navy from 1819 to 1963. It was the site of the Navy Main Yard, Navy Air Plane Factory, Navy Museum, Navy Schools and the forts Norske Løve andCitadellet.
Naval District East (ØSD) based there was disbanded in 2002. The Museum, the Royal Norwegian Navy Band, a department of theNorwegian Defence Research Establishment and some of the Navy's school administration is still present. As of 2006 the entire base including 73 buildings has been given protected heritage status by the Directorate for Cultural Heritage in Norway. Karljohansvern is open to the public. Only Vealøs is still owned by the Department of Defence.
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.