Here are my Information graphics pieces for the Rene Magritte Museum in Brussels. I wanted to make a non- arrow based signage system and came up with what can be best described as a life sized network diagram on the floor of the museum. Each level has its own line leading to it, which is colour coded to the websites map colours. each line has a pictogram that corresponds to image that's iconic of that floor. I have also included exit signs which are made up from the iconic doves thus again eliminating the need for conventional arrows.
here you can see how it may look on the floor, with the highest level (purple) being on top then the middle (orange) and then the bottom level (green) underneath both layers. this indicates which level is which without any numerical symbols.