Rotterdam looks very dense on that picture. Canary Wharf looks small to me and only has 6 big towers, but they are twice as high than the ones in Rotterdam.

i think madrid arena in the future

now, paris la defense

Warsaw too is very beautiful sky ¡¡¡

We have reached more than 500 replies , so it's time for part 2 ;

http://www.skyscrapercity.com/showthread.php?t=144065