Imagined by Mathilde Laurent, the Maison Cartier’s perfumer creator since 2005, the concept of the OSNI – Objcet Sentant Non Identifié – set the scene for olfaction at the heart of an artistic device and confronts it, in an unprecedented manner, with other languages an creative fields. From 20th to 23rd of October you can go to Palais de Tokyo to visit the first immersive olfactory event. A clouds floats as if by magic in a transparent glass cube. Visitors are invited to enter into this closed space, then take a spiral staircase leading them to the cloud. The passage through the cloud, this very sensational.