The Visual Scanner allows visitors to record their movement in the exhibition space and watch its delay on a light projection (photo: Orbis-pictus.com)

The exposition The Labyrinth of Light is an interactive installation of musical "instruments" and objects, based on the principle of the perception of light and its rediscovery through play and imagination. Visitors can try out the specially designed instruments themselves, for instance a "music wheel" which you pedal like a stationary bicycle in order to blow wind through its organ pipes.

The exhibition was designed by artist/musicians Petr Nikl and Ondřej Smeykal and  features artifacts designed from artists from around the world. It is part of a series of exhibitions entitled "Orbis Pictus," an international project of traveling exhibitions and accompanying events. Both titles are references to famed Bohemian scholar and humanist John Amos Comenius, known as the "teacher of nations."

The exhibitions in this exhibition series promote the visitors' imagination and fantasy by means of interactive instrumental objects, with an emphasis on the phenomenon of play – on the creative understanding of the world and oneself through one's own senses. These were some of the principles promoted by Comenius in his proposed reform of education.

The project was also named an official accompanying event during the Czech Republic's presidency of the Council of the European Union, which ends on June 30.

Besides offering an unusual light-and-sound experience of unique artifacts, the exhibition is held in an unusual location – Prague's Ecotechnical Museum, housed in a former sewage treatment plant.

• The Labyrinth of Light
• Open daily 10am to 6pm
• Runs through July 14
• Ecotechnical Museum, Papírenská 6, Prague 6