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The Tour des Archives is the keep of a former castle in the commune of Vernon in the Eure département of France.
Its origin dates to 1123, built by King Henry I of England, the son of William the Conqueror. It is 22m high and is a rare existing example of a round tower in Normandy, like the so-called tour Jeanne d'Arc (Joan of Arc Tower) of the former Rouen Castle.
The Tour des Archives has been classified since 1840 as a monument historique by the French Ministry of Culture.
Coordinates: 49°05′40″N 1°29′03″E / 49.09444°N 1.48417°E