SECRET Messages Hidden in Famous Art

It's pretty amazing when you find an easter egg on a Blu-ray or hidden or hidden within a movie but it's even more fascinating when you uncover mysterious messages buried in famous works of art.
I read online that in 2003, an Italian musician and computer technician named Giovanni Maria Pala discovered that if you draw lines of musical staff across Leonardo Da Vinci's 'The Last Supper' painting to correspond with the positions of the hands of the apostles and loaves of bread you uncover a melody which had remain secret for over five hundred years.
At first the music did not make any sense but after remembering that Da Vinci wrote music from right to left, Giovanni reversed the misical score.
What are some of the most mysterious cases you've ever come across?

 

Michelangelo's 'The Creation of Adam' found in the Sistine Chapel is one of the most iconic images in humanhistory. Depicting the book of Genesis where God breathes life into Adam through His fingers.
In 1990 an American physician, Dr. Frank Lynn Meshberger noticed something familiar about the areas surrounding God. Meshberger noticed that the border of the area behind God corresponds precisely with the side profile cross section of the human brain. There is even the sylvian fissure, central sulcus and cingulate sulcus.

 

If you really want to see some fascinating 'hidden artwork' just Google the phrase "fore-edge painting". It's the practice of painting an image on the edges of a book's pages. When the book is opened and the pages are fanned just right the paintings will appear.

The most famous fore-edge painting is probably Trajan's Arch, (Ancona), Tasso in Prison, and the Bridge of Sighs painted on the edges of John Hoole's 1797 translation of Torquemada's Jerusalem Delivered, an Heroic Poem, which is actually a triptych (a single piece of art divided into three panels).

While modern technology has made such things as fore-edge paintings as easy as clicking the buttons, just imagine the time and dedications it took to hide such amazing works of art using only tools available in the sixteenth and seventeenth centuries.