This funnel wall (Hof der Elemente) is located in Dresden's student district. It is said that when it rains, music will be created, but after seeing video footage (video link), I can't hear this happening. But I really do love that wall!

The "Courtyard of Elements" is one of the strangest and most enjoyable attractions in Dresden's student district in the new town. It's part of the Kunsthofpassage series of courtyards, which is an art experiment by the tenants of the apartment buildings on which the works are installed. Created by sculptor Annette Paul and designers Christoph Rossner and Andre Tempel, this piece was inspired by Rube Goldberg Machine, converting the mere patter of rainfall into a spectacular orchestral symphony.

Photo credit: Vincent Kwong.

Via Ingenium et ars.