Mount Rushmore, the world's largest stone monument, is a tribute to four Presidents – George Washington, Thomas Jefferson, Abraham Lincoln, and Theodore Roosevelt. These presidents were all great patriots who stood for the most honorable principles and highest ideals of America. Do you know what else each of these men have in common? As children, none of them had any regular, formal schooling. They were all self-educated or taught at home! Click here to read more about Mount Rushmore.