Atelier 9.81 of France have inserted a perforated canopy in between a row of houses to create a covered pedestrian walkway in Tourcoing, France.
The structure is made from a composite of aluminium and plastic with a series of folds to create a roof over the passage.
Graphics are applied to this surface, directing visitors between the new bus station on one side, and a tram and subway station on the other.
http://www.dezeen.com/2010/11/19/pedestrian-crossing-by-atelier-9-81/
[This may be of interest to those of you looking at alley ways etc.]