Do you remember first learning about dinosaurs? Have you been to Dinosaur State Park? What do you know about dinos in America? What do you think makes prehistoric creatures so fascinating?
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.
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.
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.
The contradictory history of a dam that became a statement of American power and prestige.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.