New York (5): Cosmopolis (1919-1931)

In this short but dazzling period, New York became the focal point of an extraordinary array of human and cultural energies, reaching its highest levels of urban excitement and glamour. In just over a decade, New York gave birth to its signature skyscrapers, the Chrysler and Empire State Buildings, and to artistic creations like F. Scott Fitzgerald's THE GREAT GATSBY, George Gershwin's "Rhapsody in Blue," and to the jazz compositions of Duke Ellington and Louis Armstrong. Along the way, Harlem emerged as the undisputed capital of the African- American experience and the new media industries of advertising, radio networks, public relations, and magazines found their homes in midtown Manhattan.