Robert Moses built bridges, highways, Jones Beach, Lincoln Center and the United Nations in New York. His were some of the most ambitious -- and controversial -- public works projects ever conceived.
The U.S. and the Soviet Union race to build the hydrogen bomb during the Cold War, thus beginning the nuclear arms race.
The founding father laid the groundwork for the nation's modern economy, including the banking system and Wall Street.
A central figure in the narrative of how the west was won, Wyatt Earp and his story became an American legend. Part of the Wild West collection.
Begun during the Civil War, the transcontinental railroad employed 20,000 men, mostly immigrants, who built the iron road with their bare hands.
The internationally famous carnival of delights in New York was the birthplace of the hot dog and the roller coaster.
Equipment failure, human error and bad luck led to the country's worst nuclear accident in 1979.
Creating Miami Beach from a narrow spit of Florida swampland, Carl Fisher made a fortune until a devastating hurricane and the stock market crash of 1929 wiped him out.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.