Art Deco is an eclectic and artistic design style that began in Paris in the 1920s and flourished internationally throughout the 1930s and into the World War II era. The style influenced all areas of design, including architecture and interior design, industrial design, fashion and jewelry, as well as the visual arts such as painting, graphic arts and film. Art deco represented elegance, glamour, functionality,and modernity and would be most famously well known from the spire of the Chrysler Building in New York City.
Art deco architecture was used within Bioshock and Bioshock 2 and possibly even Bioshock: Infinite which was used to emphasis the time period that the game took place at which was sometime in the 1930s and 1940s. This gave the game an almost retro feel to it (whilst I say feel here, I definitely do not mean in the sense of gameplay) as the architectures style was in itself compared to more modern architecture styles such as Modernism.