1.Paris - culture,history,parks,shopping,transportation,surroundings (Versailles)
2.Hamburg - leisure amenities,shopping,transportation,surroundings (Lübeck,forests,two seas)
http://www.viewers.de/hab
3.Venice - history,architecture,people
4.Vienna
Copenhagen
Geneva
A selection of euro cities which don't impress me, though have been there at least two times:
London,Barcelona,Brussels,Amsterdam,Luxembourg,Antwerp,Zurich,Rome,Warsaw,Krakow,Budapest,Athen,Munich,Frankfurt,Berlin.