[youtube]https://www.youtube.com/watch?v=ACkmg3Y64_s[/youtube]
This is in Germany, and is incredible.
If you look at their YouTube account, they have a great deal of videos to watch about how it was built, and problems they encountered (current problems : how to make Mount Vesuvius erupt convincingly)
(If watching their older youtube videos, you can enable subtitles and select a language other than German, if that is best for you)
Even the little cars driving about, or the aeroplanes taxiing then flying off.. is all incredibly arranged.
Ian