7. RWTH Aachen University
International Students: 33%
World University Ranking: 78
German Ranking: 6
This university was founded in 1870 when Prussian Prince William decided to create an institute of technology. Aachen is a little town situated near the Dutch and Belgian border, and it represents the most western city in Germany. If you are interested in natural sciences and engineering, then RWTH is the right choice!