The contradictory history of a dam that became a statement of American power and prestige.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
The 300-year saga of the American whaling industry.
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.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.