I found this image of any amazing cityscape. Can anyone identify the city? It is so spectacular I wonder if it is even real.
It doesn't appear to be real, but in these cases you really want Google's Search By Image.
What's odd is that your version appears to have the flying craft and the signature removed. It looks like it's been modified into a wallpaper and hosted here. I don't know if that's been done with the authors permission or not.
Note -- I'm assuming the original I linked first really is the original and not the other way round (or they're both derivatives of some other image). More research would need to be done on that, but this isn't the right place.
It's not real. You can see clearly in the image that several buildings are copied into it since they appear twice or more. This is a CG (computer graphics) wallpaper of a fictional futuristic city.