Rhine-Ruhr info
The Rhine-Ruhr metropolitan region is the largest metropolitan region in Germany with about 10,100,000 inhabitants. It is of polycentric nature and the only megacity in Germany.
Bays in Rhine-Ruhr, Germany
Cologne is Germany's fourth-largest city (after Berlin, Hamburg and Munich), and is the largest city both in the Germany Federal State of North Rhine-Westphalia and within the Rhine-Ruhr Metropolitan Area, one of the major European metropolitan areas with more than ten million inhabitants. Cologne is located on both sides of the Rhine River. ...
Langenfeld is a town in North-Rhine-Westphalia (Germany) in the district of Mettmann....