As I mentioned in a previous post. I went pretty much amok with my camera in Paris, and one of the most photographed buildings in Paris is the famous Pompidou centre. Everybody that has a little interest in design or architecture takes pictures of that building, and so did I. But hey, there is a reason. How many buildings do you know that have colour coded pipes on the outside of the building, yellow for electricity, red for transport, blue for water and green for air?