Carnegie Building, Steel company headquarters in Downtown Pittsburgh, United States.
Carnegie Building was a 13-story steel-framed structure located on Fifth Avenue, designed by Longfellow, Alden & Harlow with Chicago school architectural features. The structure combined modern engineering techniques with distinctive design elements that defined Pittsburgh's business district.
Constructed between 1893 and 1895, it became Pittsburgh's tallest building at the time and the city's first steel-cage skyscraper. In 1952, it was demolished to make way for the expansion of a nearby department store.
The building symbolized Pittsburgh's industrial power and served as a key management hub for the steel mills spread across the region. Its presence was tied to the city's identity during its most prosperous era.
The building no longer stands at its original downtown location, as it was demolished in 1952. Visitors interested in its history can explore period photographs and documentation available through local historical archives and museums.
The building's steel-cage construction was a pioneering innovation that later became the standard method for building skyscrapers worldwide. This technique made it possible to build taller and lighter structures than were previously possible.
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