A 1475 Summa Theologica by St. Thomas Aquinas:
A 1690 An Essay Concerning Human Understanding by Locke:
A 1774 copy of The Intolerable Acts of King George III to the American Colonies:
A 1792 reprint of Thomas Paine's Common Sense:
A 1787 first printing of our American Constitution:
A 1788 First Edition of The Federalist, Vol. 2:
An autographed 1893 reprint of Frederick Douglas' autobiography:
There was also an interactive newsroom where you can try your hand broadcasting the news, newspaper first pages from the current day from every state and many countries, a memorial to journalists who died doing their job, a history of reporting, and other exhibits. But one particularly moving exhibit was on 9/11.
Headlines from around the globe the day after 9/11:
The Antenna from atop the North Tower:
Felicity before a piece of wreckage from Flight 93, when ordinary citizens became heroes:
Felicity before a piece of the Pentagon:
Watching my almost two year old innocently look at rubble from such evil, I couldn't help but cry.
If you can, I heartily recommend a visit to Washington, D.C.'s Newseum.