Thomas J. Watson Research Center

[2][3] The new headquarters were finally located with a new lab on Kitchawan Road in Yorktown Heights designed by architect Eero Saarinen completed in 1961, with the 115th Street site closing in 1970.

IBM later donated the New York City buildings to Columbia University; they are now known as the Casa Hispanica and Watson Hall.

[4] The lab expanded to Hawthorne in 1984. Notable staff have included the mathematicians Benoît Mandelbrot, Ralph E. Gomory, Shmuel Winograd, Alan Hoffman, Don Coppersmith, Gregory Chaitin, physicist and presidential advisor Richard Garwin, inventor Robert Dennard, roboticist Matthew T. Mason, author Clifford A. Pickover, computer scientists Frances E. Allen, John Cocke, Stuart Feldman, Ken Iverson, Irene Greif, and Mark N. Wegman, Barry Appelman, Wietse Venema, Harry Markowitz (Economics Nobel Prize, 1990), electrical engineer Jeffrey Kephart, and physicists Llewellyn Thomas, Rolf Landauer, Charles H. Bennett, Elliott H. Lieb, J.

[7] Another well-known installation is Watson, an artificial intelligence system capable of answering natural language questions, which won several Jeopardy!

[8] The Yorktown Heights building, housing the headquarters of IBM Research, situated on private land not generally accessible to the public, is a large crescent-shaped structure consisting of three levels with 40 aisles each, radiating out from the center of the circle described by the crescent.

The lowest level is partially underground in some areas toward the shorter side of the crescent, which also leads to the employee parking lots.

The Hawthorne building was a leased facility located on Skyline Drive, which is part of an industrial park shared by several area businesses.

The Hawthorne building (located at 19 Skyline Drive) is easily recognizable by its mirrored facade and large blue pole.