This vast Citadel, built in 11C by William the Conqueror, is set out today as a public garden and has recovered, across the centuries, the attraction that it had at the time of the Conqueror. From its terrace, It offers some attractive views over the town; the castle today houses the Fine Art Museum and the Normandy museum.

Notice in particular the works of two sons of Le Havre: Eugène Boudin (1824-1898), whom Baudelaire immortalised as the «king of the skies», represented by over 200 canvases where one can find his favourite themes (Norman landscapes and beach scenes), and Raoul Dufy (1877-1953), the «Fauvist of Le Havre», represented by a collection of 69 paintings, watercolours and drawings.

The the superb Centre Guillaume le Conquérant, you will find this extraordinary work after crossing an exhibition on the Vikings, a presentation on the organisation of England under the Norman kings and a history of the invasion by William the Conqueror. Finally, you will find the tapestry attributed to Queen Mathilde, the most precise and vibrant document on the Middle Ages. But this document is first and foremost a fantastic work of art.

The building, began around 1170, was completed in the middle of the 13C. The raised façade above a flight of steps is adorned with three gates and flanked by two towers. Inside, the transept is of great simplicity; the nave, ornamented with blind bays arranged under pyramids, is very uniform. The huge axial chapel was redeveloped in a very pure flamboyant style on the orders of a local bishop, the famous Cauchon, the very one who conducted the investigation for the trial of Joan of Arc!