The NY Times has a great interactive view of the Magna Carta that was recently donated to the US National Archives.
[Examining the 'Great Paper' - The New York Times](http://www.nytimes.com/interactive/2007/09/24/nyregion/20070924_MAGNA_GRAPHIC.html)Examining the 'Great Paper' - The New York Times
heads up: this is a pretty old post, it may be outdated.