It was a Eureka-like moment for Mr. Buren who had spent several fruitless months trying to find a way to create something that wouldn't be utterly overwhelmed by the volume of the Grand Palais' nave and its massive glass, barrel-vaulted roof.

WSJ: Daniel Buren's Bright Periphery | 'Excentrique(s) Travail In Situ' at the Grand Palais in Paris