270 Park Avenue (1960–2021)
270 Park Avenue, also the JPMorgan Chase Tower and Union Carbide Building, was a skyscraper in the Midtown Manhattan neighborhood of New York City. Built in 1960 for chemical company Union Carbide, it was designed by architects Gordon Bunshaft and Natalie de Blois of Skidmore, Owings & Merrill (SOM). The 52-story, skyscraper later became the global headquarters for JPMorgan Chase. When it was demolished in 2021, the Union Carbide Building was the tallest peacefully demolished building in the world. A taller skyscraper with the same address, to be completed in 2025, is being constructed on the site. The building occupied a full city block bounded by Madison Avenue, 48th Street, Park Avenue, and 47th Street and was composed of two sections. The main shaft, facing east toward Park Avenue, was 52 stories tall. There was a 12-story annex facing west toward Madison Avenue. About two-thirds of 270 Park Avenue was built atop two levels of underground railroad tracks, which feed directly into Grand Central Terminal to the south. This not only prevented a basement from being built under most of the site but also required that the lobby be one story above ground level. Union Carbide's offices were designed around