At 1,396 feet, 432 Park Avenue isn’t the tallest building in New York. But with a height-to-width ratio of 15 to 1, it is one of the skinniest. On windy days, that ratio can cause one little problem: swaying.
Back-and-forth movement on top floors can cause serious discomfort for people inside. To deal with that, modern skyscrapers use a slew of architectural tricks to confuse the wind. Details that might look like decorative flair — like twisted sides, tapered pointy tips, and gaping holes — are actually carefully designed wind reduction techniques that keep buildings still.
Watch the video above to learn how the insides and outsides of tall buildings are designed to redirect wind. You can find this video and all of Vox’s By Design series on YouTube.