There's an old and apocryphal London saying that you're never more than six feet away from a rat. This map from Stephen Walter shows how you're never more than a furlong from a subterranean oddity.

This map from artist Stephen Walter shows the many rivers that feed into the River Thames in London. From the Beverley Brook in the west to the Quaggy in the east, the map reveals the hidden ...

The underworld of London carries many secrets. At least, it used to. Artist Stephen Walter has found and documented the city's underground complexion in a hand-drawn map of subterranean London.

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