The transcontinental railroad's construction touched the lives of hundreds of thousands of people. Some desired it, some built it, and some did everything in their power to stop it. Browse a photo gallery of settlers, Native Americans, and workers whose lives were affected by the railroad as it traversed the West.
The contradictory history of a dam that became a statement of American power and prestige.
The Alaskan Highway stands today as one of the boldest homeland security initiatives ever undertaken.
The historic journey of Apollo 8 captivated the world in 1968 -- a bright spot in a year marked by political assassinations, race riots, and the Vietnam War.
During World War II, more than a thousand women signed up to fly with the U.S. military as WASPS.
William "Buffalo Bill" Cody's legendary exploits helped create the myth of the American West that still endures today.
The ultimate frontiersman, Carson inspired popular novels before being associated with the "Long Walk" of the Navajo people.
As the star attraction of Buffalo Bill's Wild West Show, Annie Oakley thrilled audiences around the world with her shooting feats. Part of the Wild West collection.
While the U.N. debated strategies for control of atomic energy, the U.S. Navy was preparing for nuclear tests on Bikini Island.