"Googie architecture is a form of modern architecture, a subdivision of futurist architecture influenced by car culture and the Space and Atomic Ages. [...] Features of Googie include upswept roofs, curvaceous, geometric shapes, and bold use of glass, steel and neon. Googie was also characterized by Space Age designs depicting motion, such as boomerangs, flying saucers, atoms and parabolas, and free-form designs such as "soft" parallelograms and an artist's palette motif."

It's that Jetsons-American-Graffiti-Jack-Rabbit-Slim's look.