In 1927, at the Fifth Solvay International Conference on Electrons and Photons, 29 of the most brilliant minds in physics (17 of them were or later became Nobel Prize winners) got together and took the iconic photo above.

Fast forward 85 years to today, when Sanna Dullway (redditor mygrapefruit) added color to the black and white photo. The result is fantastic: Link - via io9