The redevelopment of Château Perrier into a Regional Champagne Wine and Archaeology Museum reflects the architectural message handed down by Charles Perrier. The project uncovers a monument deeply rooted in the terroir, and showcases the solution without forgetting the specific features and qualities of a monument which takes us back to the 19th century; particularly its external facades and wonderful indoor spaces. The project draws on human history. Humans have always reused monuments created by their predecessors, by modifying and extending them. Depending on the era, cultural changes and the most pressing requirements, these reuses have taken very different appearances. It should be noted that successful reuse is a blend of careful preservation and additions reflecting the era. The basement development is a major project which fully restructures the château both in terms of organisation and circulation, as well as presentation and understanding. It is a horizontal gallery which crosses the château’s basement and the cellar. By passing through, you can learn more about the geological and historical context of the terroir. You learn more about vine growing and the rich subsoil which helps produce and develop Champagne wine. This gallery links the château’s reception and the temporary exhibition rooms separately to the common spaces (courtyard and garden). The château's elevations and the two pavilions are recreated as they were originally. Even the garden benefits from this gallery through a privileged visual link to the distant landscape. This gallery is modestly designed. It is made of polished concrete and glass which contrast with the rustic cellar walls. In the château, the new corridors do not aim to imitate the old ones. They are considered carefully, as well as all spaces without significant ancient elements. When they still exist, these elements are protected and included in the new developments in relation with the museum exhibits; ceilings, window frames and even roof trusses which are still visible.