While the U.N. debated strategies for control of atomic energy, the U.S. Navy was preparing for nuclear tests on Bikini Island, forcing residents to move away for more than 40 years.
Robert Moses fueled some of the most ambitious -- and controversial -- public works projects ever conceived.
In the early 1830s, Texas, ruled by Mexico, held 20,000 U.S. settlers and 4,000 Mexican Tejanos, forcing residents to pick sides.
The contradictory history of a dam that became a statement of American power and prestige.
The staggering death tolls of the Civil War permanently altered the character of the republic and the psyche of the American people.
"The Wizard of Menlo Park," Inventor Thomas Edison, built the first practical light bulb and revolutionized the world.
A revealing portrait of one of America's most paradoxical leaders.
The U.S. and the Soviet Union race to build the hydrogen bomb during the Cold War, thus beginning the nuclear arms race.
The Pennsylvania Railroad Company accomplished an enormous engineering feat, but destroyed a great architectural monument.