Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
A daunting story of shipwreck, starvation, mutiny and cannibalism amongst a group left abandoned in the high Arctic.
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 American effort to relieve starvation in Soviet Russia in 1921 during the worst natural disaster in Europe in 500 years.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
The 300-year saga of the American whaling industry.