Chilean artist resurrects 'phantom railings' in London

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An interactive sound sculpture by Chilean artist Catalina Pollak uses the movements of pedestrians to evoke the ghost of a lost iron fence in London.

The site of the invention is a garden in Bloomsbury whose railings were removed as part of the war effort during World War II and never replaced.

Roopa Suchak reports.

Video produced by BBC Mundo's Idoia Larrañaga.

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