The models below give an idea of the scale. 
Creating from one hundred of 10x10x300cm wood timbers, this model corresponds to a 3 meters diameter sphere. This size is not frozen, it could be easily more. For example, the sphere presented on the attached images was 6 meters diameter.
This installation can take place, inside, outside. It could be hang, partially insert in a building, getting out of water... everything is possible, it just depend on the place where it will take place.