The Gherkin The iconic City office tower is now high-rise housing. Originally converted into luxury flats, the block soon slid down the social scale to become a high-density, multi-occupation tower block. The Gherkin now worries the authorities as a potential slum. Refugees from equatorial lands have moved north in search of food. They make their homes in the buildings that once drove world finance – before the collapse of the global economy. Image © Robert Graves and Didier Madoc-Jones.