Built in 1885 by architect Weyland for the Protestant Society of Poissy, enlarged with a grandstand in the 1960s and then a large modular room in 2010, the Protestant temple lives at the rhythm of the community of faithful established in Poissy since the 19th century. In its simplicity and sobriety, the building is characteristic of the Reformed places of worship built at that time. Temporary exhibition in the adjoining rooms: "The world as garden"- free entrance