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.
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."
The contradictory history of a dam that became a statement of American power and prestige.
Postwar New York City and the global economic order told through the story of the World Trade Center.
A biography of the last outlaws of the American Wild West
Engineer James Eads tamed the mighty Mississippi, turning New Orleans into the second largest port in the nation.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
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 Alaskan Highway stands today as one of the boldest homeland security initiatives ever undertaken.