You know, I still have enough lego railroad at my parents house to be able to do a raised track like that. I have the streets and whatnot, but I never had the gumption to build real looking buildings like that.
heh - the closest thing / set i have to that track is a thomas the tank engine and friends track set... ( its for the nephew, even though i mess with it sometimes. ) it isnt really a big set, so there is a limited number of layouts to create.
although i emailed someone about a box full of legos earlier this thursday morning... so, i might have some legos soon...