A large collection of images of medieval manuscripts however you can't zoom to a close focus and there aren't translations, except for a brief description of what each page on the manuscript contains.
Search for and view images of medieval and Renaissance manuscripts in the British Library. Detailed descriptions and bibliographies also included for each image. "Images can be accessed, printed and downloaded in unaltered form with copyright acknowledged, on a temporary basis for personal study"--See the British Library's copyright notice for more details.
"Mr. Lincoln's Virtual Library highlights two collections at the Library of Congress that illuminate the life of Abraham Lincoln (1809-1865), the sixteenth president of the United States. The Abraham Lincoln Papers housed in the Manuscript Division contain approximately 20,000 items including correspondence and papers accumulated primarily during Lincoln's presidency." Awesome.