There's also one at Summit and Mercer, I believe - I have no idea why, but they're pretty groovy.

One at 15th and John too.

There's one in front of Cinerama too.

Belltown represent.

I just saw my first golden fireplug today and the beauty made me swoon...vis art genius shortlist, anyone?

i love them! i was terribly depressed the first time i walked by one, and found it oddly comforting.

They're popping up on the Ave in the U-District and in Queen Anne as well...

Not to pop the bubble of mystique but you could call the public works department and ask them ...

Harvard and Republican too!

I saw two girls jump out of their car while I was walking home after a round of drinking at some off-Broadway bars, and spray-paint the one on 15th and Thomas. I asked them why, and they said it was just for fun. It definitely put a smile on my face. :)

some people were commenting on them at metroblogging seattle last week, too -->
http://seattle.metblogs.com/archives/2005/12/is_this_like_pa.phtml

someone should put together a little map of all of them for sight-seeing purposes.