The Gutenberg Bible is online, courtesy of the Harry Ransom Humanities Research Center at U.T. Austin:
The Gutenberg Bible, the first book printed with movable type, is one of the greatest treasures in the Ransom Center’s collections. It was printed at Johann Gutenberg’s shop in Mainz, Germany and completed in 1454 or 1455. The Center’s Bible was acquired in 1978 and is one of only five complete examples in the United States.
You can look at it, page by page. (Thanks to Stephany for the link.)