I tried to take a picture which gives a good idea. Here it is.
The outside of the box is protected by some book covering. The inside is decorated with the remaining part of the insert, and some pictures from the new 7 wonders of the world, the trigger which gave Antoine Bauza the idea for this game. The sides are strenghtened by pieces of cardboard which also provided for the little flaps, and finally I added some "scratch" adhesives for keeping the lid closed.
