The Skyscraper from @RobertusMaximus was really cool.
But I dislike the bridge without handle or similar, so I added a handle and added a bit width. I added some holes for an industrial look. I printed the bridge sideways without any support. Works like a charm on my P1P.
Then I opened the hatch on the roof. I wanted to add the option to have it open. It looks really good, and its even more stable like it looks.
The 3MF of the roof has the correct size. Please check. that it is 100mmx111mm to fit on the buildings.
The author remixed this model.