The INVISIBLE MATISSE project is a pop-up inspired by Henri Matisse's studio. Starting From a standard element such as a truck, it defines the dimension of this project on the architectural level. Through this intervention, Invisible Matisse reveals itself as an immersion to understand and delve into his works. Following Henri Matisse’s path, the visitor is invited to understand the system of conception of space through composition. This pop-up is itinerant and follows the temporary exhibitions of Matisse. It allows the different museums to propose a new experience by showing another dimension of his work, beyond the paintings. The idea is to create a space outside the Museum, as a way to announce the exhibition. The visitor is involved and becomes an actor of the architectural elements. He invests the space through participative workshops by experimenting with patterns, colors, and the construction of an environment.