9. Imperial College London

Students: 16,425
Students Per Staff: 11.7
International Students: 56%
Female/Male Ratio: 38/62

"Famous alumni include science fiction author H.G. Wells, Queen guitarist Brian May, former prime minister of India Rajiv Gandhi, former UK chief medical officer Sir Liam Donaldson, and former chief executive of Singapore Airlines Chew Choon Seng. The college’s motto is Scientia imperii decus et tutamen, which translates as “Scientific knowledge, the crowning glory and the safeguard of the empire,” the report said.