Architecture experts weigh in on what makes a building iconic. Atlanta is fortunate to have an array of commercial buildings with instant identity: The King and Queen structures overlooking the Perimeter in Sandy Springs, the circular Westin Peachtree Plaza downtown and the Bank of America Plaza in Midtown, which, at 1,023 feet, holds the record as the tallest building in the Southeast. And then there are others with names even long-time locals aren’t sure about.