Dictionary of Modern Architecture: Postmodernism

Philip Johnson's At&T Headquarters (now the SONY Building) is often cited as an example of postmodernism.

Postmodern architecture evolved from the modernist movement, yet contradicts many of the modernist ideas. Combining new ideas with traditional forms, postmodernist buildings may startle, surprise, and even amuse. Familiar shapes and details are used in unexpected ways. Buildings may incorporate symbols to make a statement or simply to delight the viewer.

Philip Johnson's At&T Headquarters is often cited as an example of postmodernism. Like many buildings in the International Style, the skyscraper has a sleek, classical facade. At the top, however, is an oversized "Chippendale" pediment.

The key ideas of Postmodernism are set forth in two important books by Robert Venturi: Complexity and Contradiction in Architecture and Learning from Las Vegas.