Cleanest Cities in the World

I was recently "scandalized" by Forbes' rather horrible list of Cleanest Cities in the World. First, because it was presented as a really annoying photo slideshow. Second, because it was terribly inaccurate.

First, here is Forbes' list:

#1 Calgary
#2 Honolulu
#3 Helsinki, Finland
#4 Ottawa
#5 Minneapolis [um, no]
#6 (Tie) Oslo, Norway
#6 (Tie) Stockholm, Sweden [um, no]
#6 (Tie) Zurich, Switzerland
#9 Katsuyama, Japan [30,000 people counts as a city?]
#10 (Tie) Bern, Switzerland
#10 (Tie) Montreal [hell no]
#10 (Tie) Vancouver, Canada
#10 (Tie) Boston [um, no]
#10 (Tie) Lexington, Ky.
#10 (Tie) Pittsburgh [hell no]
#10 (Tie) Nürnberg, Germany
#10 (Tie) Geneva
#18 Auckland, New Zealand
#18 (Tie) Wellington, New Zealand
#20 Dublin, Ireland [hell no]
#21 (Tie) Amsterdam, the Netherlands
#21 (Tie) Toronto
#23 Lyon, France
#24 Copenhagen, Denmark
#25 (Tie) Kobe, Japan
#25 (Tie) Omuta , Japan

Now, here is a much more reasonable list (of cities over 500,000, which excludes Honolulu and Vatican City, for example). The cleanest cities are, of course, those with stiff penalties for uncleanliness:

1. Pyongyang (pop 2,741,260)
2. Singapore (pop 4,483,900)
3. Dubai (pop 1,422,000)

Followed by a few remarkable oddities of cleanliness:

4. Curitiba (pop 1,788,559)
5. Sendai (pop 1,028,214)

Followed by a few that Forbes named:

6. Calgary (988,193)
7. Helsinki (564,908)
8. Oslo (pop 1,120,000)
9. Nürnberg (pop 500,132)
10. Ottawa (pop 859,704)

Much better. Now, which cities did I miss?