The Flatiron Building, originally known as the Fuller Building, is a famous landmark located at 175 Fifth Avenue in the Flatiron District of Manhattan, New York City. Designed by Daniel Burnham and Frederick P. Dinkelberg, the triangular 22-story steel-framed building stands at a height of 285 feet. It was completed in 1902 and initially featured 20 floors. The name "Flatiron" derives from its distinctive triangular shape, resembling a cast-iron clothes iron.
Constructed as the headquarters of the Fuller Company, the building was developed on the site acquired from the Newhouse family in May 1901. Construction progressed rapidly, and the Flatiron Building opened its doors on October 1, 1902. Additional retail space and a one-story penthouse were later added. In 1925.
The Flatiron Building's façade is divided into three sections, resembling the components of a classical column. The three-story base is clad with limestone, while the upper stories feature glazed terracotta. Designed by the structural engineering firm Purdy and Henderson, the building's steel frame was engineered to withstand four times the maximum wind force in the area. Recognized as one of the world's most iconic skyscrapers and a symbol of New York City, the Flatiron Building anchors the southern end of Madison Square and the northern end of the Ladies' Mile Historic District. The surrounding neighborhood is known as the Flatiron District, named after this iconic building. The Flatiron Building received New York City landmark status in 1966, was added to the National Register of Historic Places in 1979, and was designated a National Historic Landmark in 1989.