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99% Invisible

Structural Integrity

Apr 15, 2014 · 23 min · Episode 110 · 22.4 MB
0:00-23:17

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When it was built in 1977, Citicorp Center (later renamed Citigroup Center, now called 601 Lexington) was, at 59 stories, the seventh-tallest building in the world. You can pick it out of the New York City skyline by its 45-degree … Continue reading →

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