During the Great Depression, Americans built the Hoover Dam, overcoming technical challenges to erect one of the greatest engineering works in history.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
Robert Moses fueled some of the most ambitious -- and controversial -- public works projects ever conceived.
A biography of the last outlaws of the American Wild West
The internationally famous carnival of delights in New York was the birthplace of the hot dog and the roller coaster.
The historic journey of Apollo 8 captivated the world in 1968 -- a bright spot in a year marked by political assassinations, race riots, and the Vietnam War.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
While the U.N. debated strategies for control of atomic energy, the U.S. Navy was preparing for nuclear tests on Bikini Island.
She set out to save a species… us.