In my requirement, i need to show different building to user on mouse moments. ( like roaming a city ). I have no.of builidng as a photo. how to convert all those in to `3d` object?

a) I can trace (draw) using illustrator so the builidg became 2d drawing, but how to convert that in to `3d` object? and will `three.js` accept the `vector` drawing created out of it?

b) or can i directly use the different images to make an 3d view? if so, example i have front view and back view - how to convert them to `3d` image?

here is my sample image:
any one help me to showing, make this to `3d` and my camera let go around it?
I am looking for some good clue or sample works or tutorials.

![Sample Building](https://i.stack.imgur.com/UCRMu.png)