This list appears several places online, but the link it's supposed to come from
http://www.infoplease.com/ipa/A0198352.html
doesn't have it by cities
World cities in 2006
1. Paris, France
2. Barcelona, Spain
3. NYC, USA
4. Beijing, China
5. Rome, Italy
6. London, England
7. Mexico City, Mexico
8. Istanbul, Turkey
9. Frankfurt, Germany
10. Moscow, Russia
11. Vienna, Austria
12. Toronto, Canada
13. Kuala Lumpur, Malaysia
14. Kiev, Ukraine
15. Warsaw, Poland
16. Hong Kong, China
17. Athens, Greece
18. Budapest, Hungary
19. Bangkok, Thailand
20. Lisbon, Portugal