Hester Underhill visits a strange subterranean building in the French capital designed by Brazilian architect Oscar Niemeyer.

With an influential audience of city mayors, urban planners and architects, this is Monocle’s guide to making better cities, be it new technology, state-of-the-art subways or compact apartments. Nominee in the Smartest Podcast category of the 2019 British Podcast awards. 

<p>With an influential audience of city mayors, urban planners and architects, this is Monocle’s guide to making better cities, be it new technology, state-of-the-art subways or compact apartments. Nominee in the Smartest Podcast category of the 2019 British Podcast awards. </p>

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