Gyms in Berlin, London, and Paris

I’m going to be going to these cities for a couple weeks this summer and would like to get in a few workouts while I’m there. Can anyone recommend decent gyms in any of these cities?

Thanks in advance

Gyms in london

I’m guessing your going to be staying in tourist type areas, so this is a good one in Covent Garden.

http://www.jubileehallclubs.co.uk/jhc_coventgarden/covent_intro.htm

LR