BERLIN.- In an exhibition series entitled secret universe, the Hamburger Bahnhof is dedicating itself to artists who have largely gone unnoticed within the established art discourse and will feature them in monographic projects. The second exhibition in this series presents works by the American artist and architect Paul Laffoley (*1940). Since the mid-1960s, Laffoley has confronted scientific, philosophical and spiritual matters in his work with equal verve. He studied art history, history, philosophy and architecture and spent more than 38 years living in a one-room apartment in Boston, which he dubbed the ‘Boston Visionary Cell’. He is influenced in his work by his collaboration with the visionary architect Frederick Kiesler, as well as by the theories of Buckminster Fuller and C.G. Jung and the literature of Johann Wolfgang Goethe and William Blake. Another factor that has left a mark on his work is the