Dinosaur bones have been discovered all over the United States. Explore some of America's most exciting dig sites on this interactive map.
The worldwide migration by eager gold-seekers turned California into a land of opportunity and fierce competition.
Originally settled as a mail stop, Las Vegas changed from an Old West vacation town, to a mafia haven, to the "Atomic City" and "Sin City."
The contradictory history of a dam that became a statement of American power and prestige.
From Joseph Smith's discovery of gold tablets to persecution, migration, and settlement in Utah, the film explores the history of the most American of religions.
John Wesley Powell's epic journey into the unknown Grand Canyon was filled with adventure as his team mapped the Colorado River for the first time.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
In 1927, the Mississippi River flooded from New Orleans to Illinois, leaving a million people homeless and leading to a major black migration to the North.
The life of the legendary photographer, known best for his black and white images of the wilderness of the American West.