I haven't been to Düsseldorf , although I've been at an airport close to this city for several times (but don't remind me about the planes, please).
Düsseldorf is the capital city of the German state of North Rhine-Westphalia. It is an economic centre of Germany. The city is situated on the River Rhine and also has a high population density - the Rhine-Ruhr metropolitan area has over 10 million inhabitants alone. The city is renowned for its many events and also for its fashion and trade fairs. Every July more than 4.5 million people visit the Große Düsseldorfer Kirmes fair.