This is all about ephemeral experiences, memories, heritage and the flow of time. “Remember Souvenir” is a performance: Denis Meyers painted 50.000 square meters of the Solvay head-office building. The whole thing is now destroyed: from the start, artistic considerations where schedule to take the back seat when the real-estate developers showed up. With the hope of keeping a trace of our architectural, cultural, and industrial history, we completed a 3D scan of the entire building, including the art performance. This project was a huge technical challenge due to its vastness.