The document describes an interactive workshop called "Enigma" held at the Tech'Galerie at Cité des Sciences in Paris. The workshop uses SunIdee's innovation timeline poster to guide participants through innovations from the past century and help them better understand connections between innovations. Participants of all ages can learn about innovations in a fun way through the "Enigma" game. At the end, participants are invited to draw their visions of future innovations for a better world.