1 Franck Owen Gehry, or audacity in architecture By Hugues Henri Franck Owen Gehry : Gehry, alias Goldberg, was born in Toronto in 1929, in a milieu of Jewish emigrants, hardware store owners, the source of Gehry's poetic universe. Gehry studied art and then architecture at Los Angelès, where he lived in the Californian intellectual and artistic milieu of the 60s and 70s: he was interested in geometric abstraction, Constantin Brancusi, Robert Rauschenberg and Jasper Jones. His initial approach to Architecture-Action is similar to assemblagist artists such as Edward Keinholz. So Franck O.Gehry considers himself above all as a sculptor and declares that: "For me, architecture and sculpture are one and the same thing, to those who refuse to consider me as an architect, I say that I am a sculptor, to those who challenge me as a sculptor, I reply that I am an architect! ». On the other hand, Gehry combines his models with CAD/CAM (computer-aided design/manufacturing) in a radical way that does away with paper architecture. Does Franck O. Gehry's audacity lie primarily in this atypical approach or in his working method, which consists of "tackling different aspects of the project at the same time"? Is it multiple? It will be analyzed here in the context of the conception and realization of the Guggenheim Museum in Bilbao. Frank Owen Gehry, Guggenheim Museum in Bilbao