Take a tour of Flatiron Building in New York City – part of the World’s Greatest Attractions series by GeoBeats. New York City has some of the greatest skyscrapers in the world. In the heart of the city, this oddly-shaped triangular building recently celebrated its centennial. At the time of its construction, the Flatiron (originally Fuller) Building was one of the world's tallest. Despite many earlier New Yorkers' doubts about its stability, it has become a beloved landmark. This early example of a skyscraper has appeared in many movies throughout the years. Despite New York's many wonders, visitors still make time to see the Flatiron Building.