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6 images
Harald Franzen
November 28, 2016
https://p.dw.com/p/2TOV1

The Smog Free Tower looks like a spaceship that has touched down in a city park. The brainchild of Dutch designer Daan Roosegaarde, the tower is seven meters tall and completely encased in shiny metal, its purpose is to filter pollution out of the ambient air. But what happens afterward is perhaps even cooler.