Towering over the Black Hills of South Dakota, Mount Rushmore was the vision of Gutzon Borglum, a combative and fiercely talented young sculptor. To elicit public support for his dream, Borglum whipped American patriotism into a frenzy, finally securing the financing he needed to embark on the creation of his awe-inspiring monument. Over the course of 15 years, 350 men poured their sweat into Borglum's vision, using drills and explosives to chisel Washington, Jefferson, Lincoln and Roosevelt into the massive granite cliff. Here is the controversial history of this unorthodox masterpiece, including the remarkable design specifications, the tragedies and setbacks that marred its construction, and the awe it inspires to this day.