Bonn University, in Bonn, Germany, 08 September 2014. Bonn, that offers many touristic attractions, was founded in the first century BC as a Roman settlement, and is one of Germany's oldest cities. From 1597 to 1794, it was the capital of the Electorate of Cologne and residence of the Archbishops and Prince-electors of Cologne. From 1949 to 1990 Bonn was the de facto capital of West Germany, and of Germany from 1990 to 1999. (Photo by Horacio Villalobos/Corbis via Getty Images)
