Skyline Blog

About Skyscrapers

Citigroup Center – the Angled NYC Skyscraper

Posted by Jae on April 22, 2009

Citigroup Center

Citigroup Center

The Citigroup Center (formerly Citicorp Center) is a 279 m, 59 floor skyscraper in New York City, United States, located at 53rd Street between Lexington Avenue and Third Avenue in midtown Manhattan. This building is one of the most distinctive and imposing in New York City’s skyline, with a 45° angled top and a unique stilt-style base.  It is the tallest building that bears the Citigroup name.

To help stabilize the building, a tuned mass damper was placed in the mechanical space at its top.  The damper is designed to counteract swaying motions due to the effect of wind on the building and reduces the building’s movement due to wind by as much as 50%. Citigroup Center was the first skyscraper in the United States to feature a tuned mass damper. The building also features double-deck elevators, which are separated to serve only odd or even floors.  The corporate headquarters of Citigroup are not located in the building, but across the street in 399 Park Avenue.

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2 Responses to “Citigroup Center – the Angled NYC Skyscraper”

  1. Mia said

    I’m doing a project at school for proportions and we have to make a model of a building. I was considering to do this building. I need the measurements for it (like the base, height, width, and the measurements for the angle–in feet). Thanks!

    • lisa miller said

      My son is making a citigroup center model at school. He cannot find the width of the bld. Can you help? Thanks.

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