As reported on Thursday the Italian site HAL9000 published today a super hi-res photo of Da Vinci's Last Supper online.

You can zoom into the photo like you can into a Google map. The last level of detail gets you down to the cracks in the wall the Last Supper is painted on.
So now you can hunt down signs of your own conspiracy theory or secret Da Vinci has supposed to be hidden in the painting.
In July a story about overlaying the Last Supper painting with a reverse version supposedly reveals hidden figures.
See the super hi-res Last Supper painting on the Hal 9000 site.