Elements of Architectural Design: Expressive
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METAPHOR
Architects often talk about the use of metaphor in design and we could expand our definition of expressive elements of architecture to include this notion. When architects use metaphor to design a building, they choose an idea or mental image that they want their structure to express. For instance, Eero Saarinen used the metaphor of flight in his design for the TWA Terminal at Kennedy Airport in New York, which resembles a giant pterodactyl soaring in the air. Obviously, an airport does not have to look like it is flying to sort people to their planes, but Saarinen based his design on the fanciful image.