I wonder what the smallest 009 layout ever built is? I know I have built some very small ones, but I still think there must be smaller ones out there.
(Oh, and in case anyone wishes to bring this up, in the competition at http://carendt.us/scrapbook/page80a/index.html neither of the two winners were 009, although both were 9mm gauge, so could be copied and adapted to 009. The competition did include some 009 in the runners up. If anyone would like to build the smallest 009 layout, then they could do so and post photos here.)
In terms of track, I think it has to be Phil Savage's Tuppeny Handley
http://carendt.us/scrapbook/page84a/index.html
Probably, although the scenery around the track makes it quite a bit bigger.