fromGeorge Perec's 'Street' (1974): 'Unitl the whole place becomes strange, strive to picture to yourself, with the greatest possible precision, beneath the network of streets, the tangle of sewers, the lines of the metro, the invisible underground proliferation of conduits (electricity, gas telephone lines, water mains, express letter tubes), without which no life would be possible on the surface'. Photo taken at the London Cans Festival 2008.