What does 10103 stand for? 

10103

660 Fifth Avenue (formerly 666 Fifth Avenue and the Tishman Building) is a 41-story office building on the west side of Fifth Avenue between 52nd and 53rd Streets in the Midtown Manhattan neighborhood of New York City. The office tower was designed by Carson & Lundin and built for its developer Tishman Realty and Construction from 1955 to 1957. The building was designed with a prominent 666 address emblazoned on the top. It had a facade of embossed aluminum panels which were originally lit by the "Tower of Light" designed by Abe Feder. The interior had a "T"-shaped atrium open to the public, with retail space, a lobby extending from Fifth Avenue, and a waterfall sculpture by Isamu Noguchi. The upper floors had a variety of office tenants, including those in the law, finance, and publishing industries. In the early 2020s, the lobby and office spaces were rebuilt and the facade was replaced with one containing glass panels. Tishman sold the building when the corporation dissolved in 1976. The building was sold to Sumitomo Realty & Development in the late 1990s, and Tishman Speyer bought it in 2000. Tishman sold the skyscraper yet again to Kushner Properties in 2007. Kushner Properties struggled with financing throughout the late 2000s and mid-2010s, even contemplating replacing it with a taller tower. Brookfield Properties leased the whole building in August 2018 and subsequently hired Kohn Pedersen Fox to extensively renovate the building through 2022. As part of the renovation, the building was renumbered to 660 Fifth Avenue.

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