Dinosaur bones have been discovered all over the United States. Explore some of America's most exciting dig sites on this interactive map.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
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 Klondike Gold Rush in Canada's Yukon Territory saw 100,000 people make the treacherous journey in search of riches.
In the early 1830s, Texas, ruled by Mexico, held 20,000 U.S. settlers and 4,000 Mexican Tejanos, forcing residents to pick sides.
Coming soon: AIR DATE TBD. It was the largest fire in American history.
A daunting story of shipwreck, starvation, mutiny and cannibalism amongst a group left abandoned in the high Arctic.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.