It's the
Miniatur Wunderland in Hamburg 
For a couple of years now I like to drive there and visit it...
It started small with 2 or three people and nowadays over 100 people are working there for two twin-brothers.
They went to the bank one day, with one sheet of paper with their idea and this bank manager liked trains etc. too.
Most astonishing enough they've got a Million or 2 Euros to get started and it went sky-high!
And it's growing and growing.
They built many parts of the world there, primarily with and for trains - but as well an airport, harbor and so on..
Just amazing!! Always worse a visit! 8)
For many years, once or twice a year, there was a documentation in television about them.
Thanks for sharing Deutschmark!
Jambo :wink:
P.S. Other people cloned the idea and opened a "Miniatur-land" in Berlin as well.
P.P.S. There you can find a
"Travel-guide" in different languages.
