Modular HO Union Station
This is a modular design that can be used for several things. There is a central building and two ends (those could also be used stand alone for hotels, banks...).
I have included a smaller central building with some of the details removed, so it will print on my Creality K1.
This was based off another design I found (but can no longer access).
This is a work in progress but it should be sufficient to work with.