Singapore, Kuala Lampur, Bangkok, Nairobi, Joburg, Capetown, Mt. Kenya, Rio de Janiero, Ihla Grande, and London also topped my favorites, so admittedly, this list is a bit outdated (circa 2010).

1. Prague, Czech Republic
2. Joshua Tree National Park, CA, USA
3. Mamallapuram, India
4. Buenos Aires, Argentina
5. Laguna Beach, CA, USA
6. Mendoza, Argentina
7. Shanghai, China
8. New York City, NY, USA
9. Vienna, Austria
10. Chicago, IL, USA
11. Edinburgh, UK
12. Huacachina, Peru
13. Brooklyn, NY, USA
14. Zurich, Switzerland
15. St. Andrews, UK
16. Lausanne, Switzerland
17. Cusco, Peru
18. Machu Picchu, Peru
19. Salt Lake City, UT, USA
20. West Hollywood, CA, USA
21. Paris, France
22. Sanya, China
23. Yangshuo County, China
24. Snowbird, UT, USA
25. Reykjavik, Iceland
26. Berlin, Germany
27. Freiburg im Breisgau, Germany
28. Florence, Italy
29. Rome, Italy
30. Hamburg, Germany
31. Cartagena, Colombia