Rogers' and Piano's concept for the Centre Pompidou drew major influences from the works of Cedric Price who experimented in the 1960s with open forms and flexible spaces. To maximize internal space, they turned the construction inside-out and exposed a skeleton of brightly colored tubes for mechanical systems. The ducts on the outside of the building are colour-coded: blue for air, green for fluids, yellow for electricity cables and red for movement and flow (elevators, stairs) and safety (fire extinguishers). As with Price's Fun Palace, an unbuilt project, the priority was to maximise functional movement and flow, freeing up internal space and facilitating the interaction between different disciplines.
