Design Classics, The London Underground Map
There was a period, between the wars, when European refugees like Gropius stopped in Britain. This stimulated a brief flourishing of modernism resulting in the design aesthetic of London public transport, from the Routemaster bus (the only piece of British ‘architecture’ that Corbusier liked) to moderne Tube stations such as Arnos Grove.
But the pinnacle of London Transport’s modernist design was the Tube map which rearranged distances to produce a supremely navigable schematic diagram that is little changed today. (I have been looking for this documentary for ages).