Pompidou Centre: 40th birthday celebrations

To its critics it was a monstrosity, resembling an oil refinery more than a museum.

But as Paris' Pompidou Centre celebrates its 40th birthday, its reputation as an icon of modern architecture is well-established.

BBC arts editor Will Gompertz has been speaking to two of the original architects, Richard Rogers and Renzo Piano, about the Pompidou's enduring legacy.