Johns Hopkins University

Johns Hopkins University ranks 15th globally out of 400 research universities in the recently released 2013-2014 World University Rankings compiled by London's Times Higher Education. The position marks a one-spot improvement over JHU's ranking in the weekly publication's 2012-2013 list.

The top 15 features 11 American universities—including the California Institute of Technology, which claimed the top spot for the third year in a row—and four foreign universities—Oxford (third), Cambridge (seventh), and Imperial College London (10th) in the U.K.; and Swiss Federal Institute of Technology Zürich (14th) in Switzerland. Harvard, Stanford, and MIT joined Caltech and Oxford in the top five.