Libraries: Where is the world's memory is stored - BBC - Culture.
Biblioteca Apostolica Vaticana (The Vatican Library), Rome, Italy
The Vatican Library has its roots in the 4th Century CE, although in its current form it was established in the 15th Century. In the 16th Century Pope Sixtus V commissioned the architect Domenico Fontana to create new buildings to the Vatican collections, and these are still used today. The decoration is so dizzyingly luxurious that it suggests a sort of fractal geometry.
Like most of the vast Vatican complex, the library is a display of the spiritual and temporal influence. In addition to documents, spanning much of human history, the library possesses the oldest known manuscript of the Bible. When the librarian shushes you, you might want to listen: he has the rank of cardinal.http://www.bbc.com/culture/story/20180704-libraries-where-the-worlds-memory-is-stored