@pixero, yes this could be a solution however i can´t provide a good interactivity.
my Project is an historical Project (time range 1961-1989) Berlin Wall and Inner German Border.
I will navigate from Point to Point and i will, that the User can open Doors and can inside Buildings etc.
What I don´t want is to produce an Egoshooter.
Why i wan´t this?
Now, if you come to Berlin, you will find only a short Part of the Berlin Wall. This show you only one situation. I would show the most Situations in Berlin to understand The Berlin Wall.
The Berlin Wall is not only a military Object or an Object to separate Population it´s Architecture,too.
If this Project is finished, i would giveaway this to Teachers, Students (University, College , grade School etc.)
The most Parts was redesigned with original Blueprints.
i have use many books about the Berlin Wall.
on of this Books was this Book:
scroll down to see bigger pictures

inspiration was this Video:




