Fascinating art from Yanko Tihov.
Liquid cartography.
The final word in underground London.
Prints of London landmarks, for every letter of the alphabet.
Listen to three very different London mappers describe their work.
A cabbie's brain, London maps, unbuilt London and the feeding of 5,000 in Trafalgar Square.
This week's round up of interesting gallery exhibitions takes us to Mayfair and Woolwich.
One for the map geeks.
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