N.B. Historical sections closed for renovation work until 2008.

A collection of 17C buildings including a remarkable library (also 17C) and a refectory decorated with woodwork and paintings by Jean Hélart depicting the lives of Saint Ignatius Loyola and Saint Francis-Xavier. The building also contains a collection of regional furniture.
The Former Jesuit College often holds temporary exhibitions (see the cultural calendar of events).
The site is also home to the Planetarium, the Atelier du Patrimoine and FRAC Champagne-Ardenne.