#12 Cornell University
Cornell University, a private research university, is ranked top 14 school in the list of Best Colleges and National Universities. It has schools and colleges located in New York, Ithaca, and Qatar. What made it to the list of toughest colleges to get accepted to its 15% acceptance rate. Founded in 1865, the school was one of the first schools in the United States to allow both men and women to study together. Since then, the school has been highly praised by producing 58 Nobel laureates and 14 living billionaires through the years.