For those of you who don't know, the Voynich Manuscript is a collection of surreal imagery accompanied by an unknown language which many people have tried for the past century to decode, though they have had very little success in doing so. It has allegedly been carbon dated to the early 15th century and was purchased by Polish book dealer Wilfrid Voynich in 1912.

You can take a look of a high definition scan of the entire manuscript here.

The manuscript is divided into sections about never before seen plants and diagrams which have astrological figures but they seem to have little significance.
It seems like no coincidence that the book is dated to around the same time as the birth of cryptography in Europe but even if the language is some sort of secret code, even expert cryptographers who decoded messages during the war have had no luck in deciphering the language. It'd be interesting to see if the book contained anything of actual value or whether it is just actual nonsense. Personally, I think it's probably either a hoax or the writings of a sufferer of schizophrenia.

At least it's entertaining to think about.
Total BS or hidden knowledge?