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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