BS user Pongsit has posted pictures of an enormous LEGO Suvarnabhumi Airport. Not sure if this is fan made or official but it’s certainly very impressive.
EDIT: Hippotam from Kkocki.blox.pl has tracked down some more information here (in Polish and English)
Hey, I’ve been there! :-D
Huge!
I found and posted at http://klocki.blox.pl some additional info about this diorama (there is also English version).
Hey cool. I’ll add a reference to it.