The Flatiron Building was completed in 1902, one of the earliest buildings to use steel construction and non-load bearing facades. At the time it was completed, it was one of the tallest buildings in Manhattan. You could see it all the way from Central Park.
During construction, skeptics called the building, "Burnham's Folly," thinking the unusual design would never stand up to a strong wind. Burnham seems to have had the last word. It still stands over 100 years later.
The name, Fuller Building, after Fuller Construction, the original tenant, never stuck. The public, from the beginning intrigued by the construction, dubbed it "The Flatiron Building" after the popular flatirons used for pressing.
The Flatiron's design has been copied in buildings throughout the world. Notable "flatiron" buildings include those in Toronto, Atlanta, and Cleveland.