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This article was originally published on May 25, 2015. To read the stories behind other celebrated architecture projects, visit our AD Classics section.

Before the impossibly “super-thin” tower became ubiquitous on the Midtown Manhattan skyline, Raimund Abraham’s Austrian Cultural Forum challenged the limits of what could be built on the slenderest of urban lots. Working with a footprint no bigger than a townhouse (indeed, one occupied the site before the present tower), Abraham erected a daring twenty-four story high-rise only twenty-five feet across. Instantly recognizable by its profile, a symmetrical, blade-like curtain wall cascading violently toward the sidewalk, ACFNY was heralded by Kenneth Frampton as “the most significant modern piece of architecture to be realized in Manhattan since the Seagram Building and the Guggenheim Museum of 1959.” [1]

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This article was originally published on July 29, 2016. To read the stories behind other celebrated architecture projects, visit our AD Classics section.

Upon opening its doors for the first time on a rainy winter’s night in 1932, the Radio City Music Hall in Manhattan was proclaimed so extraordinarily beautiful as to need no performers at all. The first built component of the massive Rockefeller Center, the Music Hall has been the world’s largest indoor theater for over eighty years. With its elegant Art Deco interiors and complex stage machinery, the theater defied tradition to set a new standard for modern entertainment venues that remains to this day.

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