The Flatiron Building is one of the most famous historic landmarks in New York. This iconic 21-story Beaux Arts edifice once dominated midtown. Although it’s now dwarfed by other structures, when it debuted in 1902, the triangle-shaped monolith represented the threat and the thrill of modernity: Naysayers claimed it would never withstand the high winds plaguing 23rd Street, while revered photographer Alfred Stieglitz—who captured it in an iconic shot in 1903—wrote that it was “a picture of a new America still in the making.” At 21 stories and 307 feet, the Flatiron was never the city’s tallest building, but always one of its most dramatic-looking, and its popularity with photographers and artists has made it an enduring symbol of New York for more than a century.