My German visits so far:
Berlin x 2 - Amazing each time, spend most of the day sleeping though...
Bremen x 2 - No stress of many sights to see, more or less everything is around the main square.
Cologne - Great time.
Duisburg - Shit hole
Dusseldorf - Half shit hole, half nice. Around the river is lovely during the day and a decent night out.
Munich - Was there with Dons but would like to go back.
I feel as though I've been somewhere else too but I'm struggling to remember.
I'm currently equidistant from Frankfurt, Mainz and Stuttgart and hope to be visiting for soccer in the coming weeks. Mainz v Hannover on Saturday and then the Frankfurt derby on the 18th.