Other communication devices are the use of historical references, often in irony or as parody, and a reliance on the façade to communicate with no reference to a building’s internal layout. Seminal Postmodern works include Michael Graves’s Portland Building, Portland, Oregon (1982), Philip Johnson’s AT&T Building, New York (1984) and James Stirling’s Staatsgalerie, Stuttgart (1984). The New Urbanism of Leon Krier at Seaside, Florida, and Poundbury, in Dorset, are also considered Postmodern.