During the Great Depression, Americans built the Hoover Dam, overcoming technical challenges to erect one of the greatest engineering works in history.
Begun during the Civil War, the transcontinental railroad employed 20,000 men, mostly immigrants, who built the iron road with their bare hands.
Equipment failure, human error and bad luck led to the country's worst nuclear accident in 1979.
The contradictory history of a dam that became a statement of American power and prestige.
While the U.N. debated strategies for control of atomic energy, the U.S. Navy was preparing for nuclear tests on Bikini Island.
The boy behind the myth, who in just a few short years transformed himself from a skinny orphan to the most feared man in the West and an enduring icon. Part of The Wild West collection.
The most daring and innovative accomplishment at the turn of the 20th century.
It was the largest fire in American history: by the time it was all over, more than three million acres had burned and at least 78 firefighters were dead.
It was the deadliest workplace accident in New York City’s history.