If so then Dresden. Dresden has all the brains and the industry. Plus it's the most beautiful town in Germany.
Nah, Bielefeld is where it's at ;)
There's no Bielefeld. What are you talking about?
I keep telling people that places like London or Paris are more like the sleepy outskirts of the vibrant metropolis that is Bielefeld. They rarely take me serious, though. ;.-(