Now we're bringing Cambridge University Library to the world.

CNN: Isaac Newton's manuscripts gravitate to the web

As well as the Captain Scott letter, held at the Polar Museum, and Darwin's animal specimens at the Museum of Zoology, other items include Isaac Newton's own copy of Principia Mathematica, at Cambridge University Library.

BBC: Carol Ann Duffy

The JFK School of Government at Harvard University in Cambridge -- miles away from the library in the Dorchester section of Boston -- was evacuated.

CNN: SHARE THIS

The JFK School of Government at Harvard University in Cambridge --- miles away from the library in the Dorchester section of Boston -- was evacuated.

CNN: SHARE THIS

These are the Wellcome Library, King's College London, the Churchill Archive Centre Cambridge, University of Glasgow, University College London and Cold Spring Harbor Laboratory.

BBC: The most important photo ever taken?