Looking for examples of 2d to 3d transformation effect

Hi.

I'm working in an animation project where we will require to make transitions (not cuts or dissolves) between a 2d illustrated street to a 3d version of the same shot. I mean, some kind of morphing or transformation of the 2d buildings to its 3d version. So, it will be great to see the works of other people as reference.

Any examples you can share of animations or any form of visual art that shows similar types of effect will be appreciated.

Thank you