The 300-year saga of the American whaling industry.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
The journey of Prince Maximilian, German naturalist, and artist Karl Bodmer, who explored the Mississippi River area from 1832-1834.
The inspiring story of the modern environmental movement.
High on a granite cliff in South Dakota's Black Hills tower the huge carved faces of four American presidents: George Washington, Thomas Jefferson, Abraham Lincoln, and Theodore Roosevelt.
The New Deal program CCC put three million young men to work in camps across America.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.