The Space Needle in Seattle, Wash. is an excellent example. If it looks like a bird, it must be a geometric bird. Ignore gravity altogether. Whenever possible, the building must hang from the sky. Multiple structural elements.
Inclusion is the rule, rather than minimalism.
New materials, including sheet glass, glass blocks, asbestos, plywood and plastic gave the architect a whole new palette to work with. Other innovations allowed steel and cement to be used in new ways. Suddenly, architects had more elbowroom for their dreams. A room made of plastic could look like a log cabin, a space ship, or almost anything. It was part of the popular culture, which reinforced a unified vision of a utopian future built on mankind's work and ingenuity.