What's your favourite city?
I'm going to be a little Eurocentric here because, other than a very brief visits to Israel (which might as well be Europe) and Egypt as a child, I've never been anywhere else - but my choices are...
Manchester (UK) - it has everything London has (plus a really good vegan restaurant) but the people aren't assholes.
Hamburg (Germany) - especially the St. Pauli which, apart from from the Reeperbahn (I didn't explore down there) is what all city districts would be like if everyone had the same politics as me (and come the Glorious Revolution, they better had).
Prague (Czech Republic; but Czechoslovakia when I went there) - just so stupidly, ridiculously beautiful.
Salzburg (Austria) - see "Prague". Also benefits from the fact that, unlike much of Austria, not everyone who lives there is a fascist.
Rotterdam (Netherlands) - what happens if everyone does what they want, but remembers not to annoy anyone else.
Frankfurt (Germany) - a second entry for Germany, which is my favourite country. Go anywhere in Frankfurt, sit on a bench, close your eyes and listen: it sounds like Kraftwerk.
Bilbao (Euskadi) - the Basques. 'Nuff said.
Barcelona (Spain) - Gaudi.