During World War II, many sets of iron railings in Britain were removed. Railings were usually cut off at the base; the stubs may still be seen outside many buildings in London and elsewhere where they have never been replaced. This was supposedly to provide scrap metal for munitions, but there is some scepticism as to whether they were actually used for this purpose.
In 2012 artist Catalina Pollak created an interactive sound installation called Phantom Railings in Malet Street Gardens, London, the site of railings that were removed during World War II. Acoustic sensors pick up the movement of pedestrians walking by and translate it into “the familiar sound produced by running a stick along an iron fence”.