The Vatican Apostolic Library is now digitizing its valuable ancient religious manuscripts and putting them online via its website. All of the content is available for free.
The Library was originally founded in 1451 AD and holds over 80,000 manuscripts, prints, drawings, plates and books printed prior to 1500 AD. The titles are all written throughout history by people who had different faiths or religions, from all over the world.
Not only are paintings, religious iconography and books being published online, but also letters by from important historical figures, drawings and notes by artists and scientists such as Michelangelo and Galileo, as well as treaties from all eras in history.