THE GUIDE

United State Courthouse
(Thurgood Marshall)

The initial design of this building, commissioned in 1931 and started the following year, was by Cass Gilbert, the architect who 23 years earlier designed the Woolworth Building, but was later completed in 1936 by his son Cass Gilbert Jr. who replaced his father after his death on May 17, 1934.
The complex is characterized by two distinct parts, a base built in Neoclassical style with a colonnade in Corinthian order and a tower of thirty floors, 180 meters high with a square base and topped by a pyramid-shaped roof. In total there are 35 courtrooms.

References

Francis Morrone. The Architectural Guidebook to New York City. Gibbs Smith, 2002. pp. 42-43
Gerard R. Wolfe. New York, a Guide to the Metropolis: Walking Tours of Architecture and History. McGraw-Hill, 1994, 2° ed. p. 96
Thurgood Marshall United States Courthouse (Wikipedia)
Thurgood Marshall U.S. Courthouse, New York, NY (U.S. General Services Administration)