You sure it was a poster?
Could it have been the back cover of a manual of some kind?
I can't tell what those pieces of paper on the windows say. The first one looks like an image of a giraffe and the other one looks to be the same but at the resolution posted it kinda looks like parchment paper.
It definitely is a poster. I'm going back to MK and will wait to take a close up picture. Worst case I'll recite the type.
The giraffes that @Jahona talked about are crossed monorails. That is something I can guarantee...