Coincidentally, Germany also has the world's largest model train exhibit, which even has a fully functional airport (with functional departure board, of course)

Coincidentally, Germany also has the world's largest model train exhibit, which even has a fully functional airport (with functional departure board, of course) and a full day/night cycle. You can watch a short tour of it at https://www.youtube.com/watch?v=ACkmg3Y64_s https://www.youtube.com/watch?v=ACkmg3Y64_s