DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY
An excavation below a road in central Copenhagen, Denmark. Unseen by their citizens, all modern cities have an underground circulatory system maintaining the service functions of the city. The picture shows the diversity and history of this circulation, with services supplied through old metal piping ( eg now defunct gas supply ), large diameter plastic piping ( eg stormwater ), small diameter plastic ducting ( eg electricity ) and now, flexible plastic ducting containing fibre optic cable for internet and entertainment provision.
Model release not required. Property release not required.