Between 1890 and 1920, 12 million people emigrated from Europe arriving in New York Harbor and Ellis Island.
A brilliant scientist, Oppenheimer was tasked with the development of the atomic bomb during World War II.
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.
The first around-the-world air race was sponsored to prove that the airplane had a commercial future.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
The shocking story of Richard Leopold and Nathan Loeb, two wealthy college students who murdered a 14-year-old boy in 1924.
The tale of oil-seeking mavericks whose risk-taking, sweat and dreams changed an American industry.