He is known for his literary masterpieces including Great Expectations, Oliver Twist, A Christmas Carol and David Copperfield. Those things aside and without further ado, here they are: the most genius of geniuses and their mind-boggling IQ levels and achievements. Likewise, you’ll note that these are European geniuses hence, mind masters from Asia did not appear, too. Moreover, the list didn’t include twentieth-century geniuses such as Albert Einstein, Enrico Fermi and Stephen Hawking. Those who didn’t appear in the top twenty of both lists are automatically out of the game, but it’s not to say they are any less than intelligent than the people in this list (we can never tell). Still, it’s fun averaging the two lists to see who among these geniuses trump their fellow brainiacs in sheer IQ performance. Buzan had Da Vinci at the top with an IQ of 220, while Cox gave the artist-inventor only 180 points. How we get the IQĮstimating the IQ levels of people who had died centuries before a refined scientific intelligence benchmarking had been developed is tricky but here we have two of the most often quoted studies: the 1926 Early Mental Traits of 300 Geniuses by American psychologist Catherine Cox, who computed the IQs of geniuses from the fifteenth to the nineteenth century and the 1994 Book of Genius by English learning expert, Tony Buzan, who ranked a more encompassing 100 greatest geniuses of our world. But just how intelligent are they compared to each other? Here are 13 of the most intelligent geniuses in the world, or at least as far as two Western scientific studies had afforded us. We know these people are exceptionally intelligent and talented.