Europe (12/24 - 1/21): Suggestions for night life

[steel108]

I booked all the hostels/ hotels, European air travel, etc.... I need suggestions for night life. I know I'm going to way too many cities in a limited amount of time, but my friend was a stickler for this schedule.

12/24 - 12/27 London

12/27 - 1/1 Paris

1/1 -1/4 Barcelona

1/4 - 1/7 Venice

1/7 - 1/10 Rome

1/10 -1/15 Athens

1/15- 1/17 Berlin

1/17 - 1/20 Amsterdam

1/20 - 1/21 London

I'm looking for suggestions on nightlife; any help would be greatly appreciated. I'm also trying to figure out how to get from Amsterdam to London via ferry; I can't seem to figure out how to book a ferry. Thanks.