Last Sunday I was on a photo walk here in Düsseldorf. It was a simultaneous walk in different cities with the same theme: "Water in your city". Other cities were Berlin and Munich. If you have a look at my G+ profile you will find a link to the different events.
Beside the water theme I had much fun with taking some other pictures and here are two of them.
The Medienhafen reflected in Hyatt hotel window
The white "Gehry house" in the Düsseldorf Medienhafen