The thirteenth best university in the world is that of Cornell, located in Ithaca, New York. Often described as the first American university, it owes its reputation to the ideal of diversity it promotes. Its founders, Ezra Cornell and Andrew Dickson White in 1865 defended the idea of a high quality education for all. Nowadays, it is one of the best professors and research teams in the world. Its 14 schools and college are year after year head of the largest awards , including the Bachelor of Architecture, the School of Management or his medical studies.

Score of 100: 50.8
Number of students: 20,000
Country: United States
Position in 2011: 13th

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The University of Pennsylvania ranked 14th in the ranking of best universities in the world in 2012. Founded by Benjamin Franklin in 1750, it still promotes its principles: rigor, innovation, entrepreneurship and attractiveness for knowledge. The lessons range from communication, art, veterinary studies or law. His nursing schools and trade, Wharton School, ranked among the top three in the country. The university, located in the city of Philadelphia, has 174 centers and research institutes. Its budget for research of nearly 450 million makes it one of the centers of R & D more dynamic.

Score of 100: 50.5
Number of students: 24,000
Country: United States
Position in 2011: 14th

The fifteenth best university in the world is American: it is that of California, San Diego (UCSD). Located near the Pacific Ocean and the Mexican border, it remains one of the great centers of learning but also an important research site. including She specializes in the study of the seas and space and has an Institute of Oceanography, Scripps, which examines the changes and developments in the world across the oceans. UCSD also has the San Diego Super Computer Center is a research laboratory computing the most innovative. Since its inception in 1960, the University has fostered nearly 200 start-ups.

Score of 100: 49.6
Number of students: 29,000
Country: United States
Position in 2011: 15th