Here is the story of America's greatest architects, whose designs and structures have changed the world - Charles Bulfinch, Benjamin Latrobe, Thomas Jefferson, Frank Lloyd Wright, Eliel and Eero Saarinen, to name but a few. From the United States Capitol building, designed in Old World style, to modern private residences like Fallingwater, from Boston's Trinity Church to the White City of the Chicago World's Fair, these buildings define the nation.