A Londoner has created a "Tube map" charting all the branches of Waitrose and Lidl in London, highlighting stark divisions in wealth across areas of the capital.
The economist, Alastair Carr said he was "struck" that there are no Lidl supermarkets in Zone 1.
And Mr Carr said he was interested in the high number of Lidl supermarkets in east and south-east London, while south-west London is dominated by Waitrose.
Mr Carr's collection of maps can be found on his blog https://notquitetangible.blogspot.com/
Photo credit: Alastair Carr map