This catalogue reveal for the first time a dialogue between two cultures that began at the close of the 19th century and today boasts a dozen of major constructions that are either in progress or have been recently delivered, including the Collection Pinault-Paris at the Bourse de Commerce, the Learning Center in Saclay, the Mille Arbres project, the bridging Aurore building on the Left Bank, the Seine Musicale in Boulogne-Billancourt, and the transformation of the Samaritaine department store.