Mount Rushmore National Memorial

Mount Rushmore National Memorial, near Keystone, South Dakota, is a United States Presidential Memorial that represents the first 150 years of the history of the United States of America with the 60-foot (18.3 m) sculptures of former U.S. Presidents George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln. The entire memorial covers 1,278 acres (518 hectares), and is 5,725 ft (1,745 m) above sea level. It is managed by the National Park Service, a bureau of the United States Department of the Interior. The memorial attracts around 2 million people annually.