- "Page 47, just have a look at that."
- ― President of the United States[src]
Page 47 is one of the many pages in the Book of Secrets, which contains all the secrets of the history to the United States.
Mount Vernon (Mentioned)
Library of Congress
Ben can be seen in the Library of Congress taking a photo with his cellphone on page 47 in the Book of Secrets, just before Peter Sadusky and his police force arrives, and his team discovers the second Wood Carving in the pages.
Meeting with the President (Mentioned) 
After Ben and his family and friends managed to escape from the city of Cíbola, they were greeted by the president in a military headquarter(?). There the president asked him if he did the favor and took a look at the page, and Ben replied "It's life-altering, sir".