One of my favorite challenges was getting to design an NFL player intro from the inside of the tunnel out to the field. I went on site for a survey. I took measurements and photos and then recreated the tunnel in 3D.
After that I got to work sculpting new set pieces in 3D. Within a couple iterations, we had full approval from the client. Because everything was created to scale, it was easy to get dimensions when creating the real set pieces.
Check out more set piece designs here.