I know Russia is not exactly in vogue right now but they have a similar model in Saint Petersburgh (the project was initiated and funded by a local businessman who was very much impressed by the museum in Hamburg). It's called Grand Model Russia. One neat thing is that the cars/trucks are moving on their own (even though they get electricity from under the road) and their movements are programmed (avoiding traffic, stopping at the traffic lights, making turns, etc). It is smaller though than the one in Hamburg and I don't think they have an airport...