From the Gateway Arch, Rockefeller Center, the Sears Tower, and the Empire State Buiding to the carvings on Mount Rushmore, the Golden Gate Bridge, the Space Needle and Grand Central Terminal, the U.S. has dozens of impressive, important, and iconic structures. Which ones have you been to? Which has had the biggest impact on its local community and on the country? Which one is your favorite?
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
The journey of Prince Maximilian, German naturalist, and artist Karl Bodmer, who explored the Mississippi River area from 1832-1834.
The life of the legendary photographer, known best for his black and white images of the wilderness of the American West.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
The American effort to relieve starvation in Soviet Russia in 1921 during the worst natural disaster in Europe in 500 years.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.
The contradictory history of a dam that became a statement of American power and prestige.
The inspiring story of the modern environmental movement.