North Rhine-Westphalia
North Rhine-Westphalia has thirty out of Germanys 81 municipalities of more than 100,000 inhabitants, including Cologne (over one million), state capital Dusseldorf, Dortmund, and Essen (all around 600,000 inhabitants), as well as other cities mostly located within the Rhine-Ruhr metropolitan area, the largest urban area in Germany and fourth largest on the European continent. North Rhine-Westphal...