Headquarters building AT & T

From 1885 to 1910, AT & T has its headquarters at 125 rue milk in Boston. With its expansion, she moved to New York, to a seat on 195 Broadway (near what is now the World Trade Center site). The property originally belonged to Western Union, including AT & T held a majority until 1913 when AT & T sold its stake in the Kingsbury commitment.  The construction of the current building began in 1912. Designed by William Welles Bosworth, who played an important role in designing Kykuit, the Rockefeller mansion north of Tarrytown, New York, this was a modern steel coated from top to bottom in an external style Greek columns three storeys high ionic Vermont granite forming eight registers on a Doric. The entrance of the building AT & T was one of the most unusual time. Instead of a large double height space, similar to the nearby Woolworth Building, Bosworth designed what is called a "hypostyle hall" with full-bodied Doric columns modeled on the Parthenon, marking a grid. Bosworth seeks to coordinate the classical tradition with the demands of a modern building. Columns are not only decorative, they had become in the hands of other architects, but created the illusion of real media. Bosworth also designed the campus of MIT and Theodore N. Vail house in Morristown, New Jersey.

In 1978, AT & T commissioned a new building at 550 Madison Avenue. The new AT & T Building was designed by Philip Johnson and quickly became an icon of the new postmodern architectural style. The building was completed in 1984, the same year the Bell System divestiture. The building proved to be too large for the company after the sale and, in 1993, AT & T leased the building to Sony, which now holds.