List of countries sorted by amount of pictures:

1. USA4973
2. Germany4332
3. Russia3838
4. Czech Republic2554
5. Israel2409
6. Poland1503
7. Thailand1323
8. United Kingdom1053
9. Ukraine1037
10. The Netherlands1028
11. China916
12. France762
13. Belgium560
14. Austria530
15. Philippines496
16. Hungary483
17. Australia467
18. Belarus466
19. Canada449
20. South Korea437
21. Romania424
22. Slovakia347
23. Kazakhstan323
24. Denmark316
25. Switzerland305
26. Italy263
27. Uzbekistan235
28. Moldova172
29. Spain166
30. Armenia142
31. Estonia98
32. New Zealand92
33. Latvia90
34. Ireland51
35. Cyprus43
36. Cambodia24
37. Greece20
38. Turkey19
39. Finland1