Postmodern architecture
Shortly after the Crystal Cathedral, working in collaboration with John Burgee, he completed one of his most recognizable buildings, the AT&amp;T building (later named the Sony Building, and now 550 Madison Avenue). Built between 1978 and 1982, a skyscraper with an eight-story high arched entry and a split pediment at the top which resembled an enormous piece of 18th-century Chippendale furniture. It was not the first work of Postmodern architecture—Robert Venturi and Frank Gehry had already built smaller scale postmodern buildings, and Michael Graves had completed the Portland Building in Portland Oregon (1980–82) two years before the AT&amp;T Building; and most of the building was in a traditional modernist style; but because of its Manhattan location and size it became the most famous example of postmodern architecture.