Interact with art in 'Euphoria: Art is in the Air' at Grand Palais

Five giant silver spheres swing above, echoing Newton's cradle in a hypnotic rhythm.

"It is forbidden not to touch", says Roberto Fantauzzi, founder of the Balloon Museum, who set up the Euphoria exhibition.

The exhibition is playful yet precise: black bin bags breathe on the walls, a bed slowly inhales and exhales, and a glass house fills with blue balloons.

Japanese-British duo A.A. Murakami's tree drops smoke-filled bubbles, while the finale plunges guests into two million black balls.

After four years of renovation, the Grand Palais doesn’t just reopen, it breathes again.