On the occasion of the European Heritage Days, come and discover the history of the former priory of Saint-Martin-des-Champs, whose only remains today are the church, the remains of the enclosure, the general line of the cloister and the refectory. Built around 1230, the refectory has been home to the central library of the Conservatoire national des arts et métiers since 1852. On the occasion of this visit, discover the exhibition «La fabrique des couleurs» dedicated to natural and artificial dyes used in dyeing and the evolutions that have changed this industry in the course of the 19th century. Guided tours upon registration:

• Sunday from 10am to 5:45pm