Polylit – is that some kind of plastic? No! It's a sculpture, made of reflecting glass and almost 10 m high, which responds to electromagnetic radiation by emitting light and sound. This luminous polyhedron is like a monumental crystal. Designed by the well-known young German artist Carsten Nicolai and executed by Werner Sobek, an internationally renowned architect and engineer for innovative structures, the new sculpture on the Kleiner Schlossplatz explores the boundary zones between nature, art and technology. One thing is certain: starting May 21, cell phones and wireless LAN computers will not be able to communicate at the Kleiner Schlossplatz without producing artistic effects. That's because Carsten Nicolai's sculpture project is interactive and reacts to its environment. The rest you'll have to find out yourself. With kind support of »Staatliche Toto-Lotto GmbH Baden-Württemberg« Carsten Nicolai, Polylit, 2006, Foto: Gonzalez, © Kunstmuseum Stuttgart / Gonzalez