'Funnel Wall' in Germany produces its own music every time it rains

A building in the 'Neustadt Kunsthofpassage' in Germany's Dresden city has a colourful drainage system full of pipes and funnels that produces music on its own every time it rains. The system amplifies the sound of rain to produce music. Sculptor Annette Paul and designers Christoph Rossner and André Tempel, who lived in the building itself, created it.