This site, which used to be a "factory" is now transformed into a place of remembrance for the men, women and children employed by the Forge. Guided tour by the owners who will make you discover the fabulous history of the Longny forge built on the former Métairie de Réavilla (1213). Depending on the period we can contemplate the beautiful garden of Pimprenelle where the pastels jostle to give way to the wonderful lights of the Perche. Free visit of the mill of Rainville (1273), guided visits in the course of the day and visit of the P'tit museum (tools of the Forge and object of popular art)