Hakasalmi Villa was built in 1843 by the procurator and privy counsellor Carl Johan Walleen as a combined city and country residence. The architect was E.B. Lohrmann from Berlin. Two wings were added to the front of the main building in 1847, the north one served as a bakery and the south one as a greenhouse. The villa was surrounded by a large English garden.
The municipality of Helsinki bought Hakasalmi from Aurora Karamzin in 1896. After her death the historical museum of state was moved to the villa. Since 1911 it has been owned by Helsinki city museum. Today there are changing exhibitions. The villa itself is one of the rare empire-style buldingins still existing in Helsinki.
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.