Although your comment is already 5 years old, let me try to help you. The airport looks like it's made out of materiel storage (I have no idea how it's called in English xd) and decorated with other stuff. In general it looks like most parts of the video are made with building which where differently used then originally meant to be. Summarized the german versions either Steam edition or "Der Bahngigant" both suck and aren't really wholesome and are missing lots of content from the Japanese version.
@@Hawkeye4077 Haha thank you so much, yeah now I'm playing city skylines xD but I always wanted to have the Japanese version, but honestly city skylines can do everything and more than a train nowadays but thank you so much for your answer after 5 years haha that's a big support ^^
@@jonasbaum9124 The german A-Train community is already very small, so it would be a sin not to help someone who is or was interested in the game ^^ :D