Here's a list of the number of vegetarian restaurants in each city according to HappyCow.net
http://www.happycow.net/1. Singapore, Asia (144)
2. London, England (135) (*201)
3. New York City, New York (121) (*237)
4. Bangkok, Thailand (73)
5. Kuala Lumpur, Malaysia (72)
6. Taipei, Taiwan (63)
7. Sao Paulo, Brazil (59)
8. Los Angeles, California (59)
9. Chicago, Illinois (58)
10. Tokyo, Japan (55)
11. Toronto, Ontario (52)
12. Berlin, Germany (49)
13. Montreal, Quebec (49)
14. Portland, Oregon (49)
15. North West London, England (49)
16. Seattle, Washington (48)
17. Chiang Mai, Thailand (48)
18. San Francisco, California (44)
19. Barcelona, Spain (44)
20. Sydney, New South Wales (43)
21. Ho Chi Minh City, Vietnam (43)
22. London, England (43)
23. Vancouver, British Columbia (43)
24. Mexico City, Mexico (43)
25. Brooklyn, New York (42)
26. Dubai, United Arab Emirates (40)
27. San Diego, California (38)
28. Java, Indonesia (38)
29. Munich, Germany (38)
30. Paris, France (37)
31. Vienna, Austria (37)
32. Taichung, Taiwan (35)
33. Penang, Malaysia (34)
34. Minneapolis, Minnesota (33)
35. Madrid, Spain (30)
36. Philadelphia, Pennsylvania (30)
37. Houston, Texas (29)
38. Kathmandu, Nepal (29)
39. Prague, Czech Republic (28)
40. Stockholm, Sweden (28)
41. Oslo, Norway (28)
42. Atlanta, Georgia (28)
43. Kowloon, Hong Kong (28)
44. South West London, England (27)
45. Auckland, New Zealand (27)
46. Kyoto, Japan (26)
47. Washington, District Of Columbia (26)
48. Bali, Indonesia (26)
49. Las Vegas, Nevada (26)
50. Buenos Aires, Argentina (26)
51. Lisbon, Portugal (26)
Anybody have some great vegan or vegetarian finds?