Question: What famous American landmark was designed to include a secret archive of U.S. history?
Answer: Mount Rushmore has a hidden chamber behind Abraham Lincoln’s head called the Hall of Records. Sculptor Gutzon Borglum originally imagined it as a grand archive of American history, but the project was left unfinished after his death. Decades later, officials placed 16 porcelain enamel panels inside a titanium vault there, explaining why the monument was carved and telling a short history of the United States.
