This stunning film portrait of Yosemite National Park uses the 1851 diary of the first expedition of soldiers into the Native American territory.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
The contradictory history of a dam that became a statement of American power and prestige.
The New Deal program CCC put three million young men to work in camps across America.
The 300-year saga of the American whaling industry.
A daunting story of shipwreck, starvation, mutiny and cannibalism amongst a group left abandoned in the high Arctic.
When an earthen dam broke without warning, a small city in Pennsylvania was swept away in a wall of water over 30 feet high.
The American effort to relieve starvation in Soviet Russia in 1921 during the worst natural disaster in Europe in 500 years.