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The most important architectural style in the United States since the 1960s is known as "Postmodernism." Postmodern architecture emerged as a reaction against the modernist architectural principles that had dominated much of the 20th century. It often incorporates elements of historical architecture, combines various styles, and emphasizes ornamentation and visual complexity. Postmodern buildings are characterized by their use of historical references, bold shapes, and a rejection of the minimalist and functionalist principles of modernism. Some prominent examples of postmodern architecture include the AT&T Building in New York City (often referred to as the "Chippendale Building") and the Walt Disney Concert Hall in Los Angeles.
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