President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
The worldwide migration by eager gold-seekers turned California into a land of opportunity and fierce competition.
The story of the farmers who dreamed of prosperity and lived through ten years of drought, dust, disease and death.
A daunting story of shipwreck, starvation, mutiny and cannibalism amongst a group left abandoned in the high Arctic.
The coal miners' battle for dignity led to the largest armed insurrection since the American Civil War.
When an earthen dam broke without warning, a small city in Pennsylvania was swept away in a wall of water over 30 feet high.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.