2nd edition Warhammer 40k box set came with a large set of "2-D" ruined buildings that resembled theatrical decoration more than model dioramas. I pulled some out of the basement for a photoshoot to see if they are viable on the tabletop almost a quarter of a century later...
See for yourself if this esthetic is what suits your taste.
What is interesting to notice is that they are very convenient as game pieces: take very little storage space and can cover a lot of table property with a very interesting labyrinth of firing lanes and travel obstacles.
They are more sturdy than I expected. Cardboard "corners" are not wobbly and easily support metal models on their second floors.
In the future I may look into the subject how to create cut-out buildings from scratch.