A 19th century building located in the town of Rueil-Malmaison, the Château de Bois-Préau has housed a national museum since the end of the 1950s dedicated to the captivity and death of Napoleon I. Annex of the Malmaison museum, it also presents the story of the return of his ashes, as well as the whole Napoleonic legend.
In neo-Regency style, the Château de Bois-Préau was once the property of Joséphine de Beauharnais, located in the heart of an English-style park of more than sixteen hectares with an ornamental pond and of an artificial river. Visitors can discover bicentenary trees there, as well as a statue of Empress Josephine from the second half of the 19th century.