North Rhine-Westphalia, commonly shortened to NRW, is a state in Western Germany. With more than 18 million inhabitants, it is the most populous state in Germany. Apart from the city-states, it is also the most densely populated state in Germany. Covering an area of 34,084 square kilometres, it is the fourth-largest German state by size.
North Rhine-Westphalia features 30 of the 81 German municipalities with over 100,000 inhabitants, including Cologne, the state capital Düsseldorf, Dortmund and Essen and other cities predominantly located in the Rhine-Ruhr metropolitan area, the largest urban area in Germany and the fourth-largest on the European continent. The location of the Rhine-Ruhr at the heart of the European Blue Banana makes it well connected to other major European cities and metropolitan areas like the Randstad, the Flemish Diamond and the Frankfurt Rhine-Main Region.
Wikipedia https://en.wikipedia.org/wiki/North_Rhine-Westphalia
Coordinates 51°13'31.446" N 6°46'34.729" E