REVEALED: The Incredible Secrets Hiding In These 10 Famous Buildings

Some of the most famous buildings in the world are hiding some incredible secrets, and now what’s hiding in these mysterious chambers is finally revealed…

1The Vatican Library, Vatican City

Flickr / Bryan Allison

There are more secrets in the Vatican City than Dan Brown could fit into a dozen novels. The Vatican’s worst-kept secret, however, is its archival vault. Everyone knows that it’s somewhere in the Vatican Library, but you can’t just go in, and you certainly can’t read the documents that the vault is hiding — unless, of course, you’re the pope.