This important vestige of the Palais des Capétiens offers a remarkable testimony to fourteenth century civil architecture with the Salle des Gens d'Armes, the Guardroom and the kitchens. Practically all the lower floor of the palace was transformed into a prison in the fifteenth century, the cells may be visited (including Marie-Antoinette's) and discovery of the souvenirs of the Revolution. Collections : History, French Revolution Practical Information : Museums and Monuments Card , Visits in Foreign Languages, Teaching Activities, Group, Guided Tours Conferences, Handicapped Persons (with help), Book Shop, Gift Shop, Hire of Space, Photography Allowed