26 September 2014 - 25 January 2015
During every night, free excess to expositions, guide tour and meeting around the exposition "Matière Grise" with Julien Choppin and Nicola Delon of agence Encore Heureux and their guests, street food with Clasico Argentino, first empanaderia of Paris installed in the Hall of Pavillon de l'Arsenal.

18h30 - 22h : Street Food with Classico Argentino (from 4 euros)
19h30 - 21h : guided tours by guide tours and their guests
18h30 - 22h : free access to the exposition