Dinosaur bones have been discovered all over the United States. Explore some of America's most exciting dig sites on this interactive map.
The 300-year saga of the American whaling industry.
William "Buffalo Bill" Cody's legendary exploits helped create the myth of the American West that still endures today.
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.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
John Wesley Powell's epic journey into the unknown Grand Canyon was filled with adventure as his team mapped the Colorado River for the first time.
Three years before the Gold Rush, 87 pioneers took a shortcut westward to California, only to get caught in the snows of the Sierra Nevada.
The contradictory history of a dam that became a statement of American power and prestige.
Originally settled as a mail stop, Las Vegas changed from an Old West vacation town, to a mafia haven, to the "Atomic City" and "Sin City."