article: Ruhr Area
links: North Rhine-Westphalia Xanten Council of the European Union Euro Ruhr Wesel Essen Duisburg European Capital of Culture Central European Time Bochum States of Germany Dortmund Rhine River Recklinghausen Herne, Germany Breckerfeld Hagen Bottrop Gelsenkirchen Mülheim an der Ruhr Oberhausen Unna Germany Hamm