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© Joachim Fleischer

SV SparkassenVersicherung headquarters at the Löwentor, Stuttgart

Tim Otto Roth: »Cosmic Revelation«

The four stairwells that form the four corners of the SV SparkassenVersicherung headquarters in Stuttgart are lit up in red. Now and then there is a flash of white light. On the roof a bright narrow light beam reaches up to the sky, pointing out that this illumination comes from the earth's atmosphere. Sixteen highly sensitive detectors are measuring cosmic radiation in real time. When it penetrates the earth's atmosphere it leaves behind a cascade of invisible particles, which become visible as flashes of light in the stairwells. The project is both an experiment and a piece of light art. It has arisen from a collaboration between Tim Otto Roth, an artist from the Black Forest region, and astroparticle-physicists at the Karlsruhe Institute of Technology.

Tim Otto Roth (born 1974) is a conceptual artist and composer who constantly surprises with his use of diverse media and structural solutions. His current works are both experiments in perception and explorations of the effect of light, sound and colour in space. The artist works closely with research institutes such as the Max Planck Society, CERN in Geneva, the US and European space agencies (NASA/ESA) and the Karlsruhe Institute of Technology (KIT). Tim Otto Roth studied Fine Arts and Theory of Visual Communication in Kassel. He gained his doctorate at the Academy of Media Studies in Cologne, specialising in the cultural history of shadow pictures.


The headquarters of SV SparkassenVersicherung at Löwentor in Stuttgart was built as an office building. The former Gutbrod building was modernised and expanded between 2000 and 2005. The tower stairwells are still clearly visible on the exterior of the old Gutbrod building and the new building, providing a striking way of dividing the building's long facade. Visitors who climb the broad steps to the elegant entrance are greeted by two men on stilts, sculpted by Stephan Balkenhol.


Löwentorstraße 65
70376 Stuttgart

Opening times

Exterior open to visitors at all times, no access to the interior