new york City on Instagram: "The World’s Thinnest Skyscraper in NYC sways in the air 🤯 111 West 57th Street, also known as Steinway Tower, is an architectural marvel and one of the most slender skyscrapers in the world 🌆✨. Rising 1,428 feet above Billionaires’ Row, its slim design isn’t just a visual statement—it also means the building sways slightly in the air due to wind. This is a common feature in super-tall, slender towers and is managed with advanced engineering, including tuned mass da