The Pont Neuf Cave is still waiting to unfold. Signed by JR, this monumental installation aims to transform Paris’s oldest bridge into an immersive grotto, blending trompe-l’œil, an inflatable structure, sound design, and a sensory experience. Damaged by strong gusts, the work is under restoration and is not expected to open for a few days, with a final date still planned—at this stage—on June 28, 2026.