But many Americans might not know the secret behind one of the country's most iconic political monuments.
There's a secret room inside Mount Rushmore that stores important US documents
Since taking office, President Donald Trump has reignited a debate about what it means to be American.
Enter: The Hall of Records at Mount Rushmore.
Where the frontal lobe of Abraham Lincoln's brain would be, there is a secret room that contains the text of America's most important documents. It sounds like something out of "National Treasure" (or, more fittingly, "Richie Rich") but the Hall of Records is a legitimate historical repository.
Conceived in the 1930s by the monument's designer, Gutzon Borglum, the Hall was designed to be a vault for a selection of documents chronicling America's history.
envisioned an 800-foot stairway leading to a grand hall, measuring 80 feet by 100 feet, behind the presidents' faces. Above the entrance to the hall would hang a bronze eagle, with a wingspan of 38 feet. The hall would contain busts of famous Americans and a list of US contributions to science, art, and industry, according to the National Park Service.
At least, as far as we know. Maybe Nicolas Cage knows something we don't.
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