Introduction to the Paul Koehler Center: The Paul Koehler Center was designed by Italian architect Renzo Piano and is a wavy modernist masterpiece. The art center houses more than 4,000 works by the famous painter Paul Klee, which is the largest collection of Klee's works among similar institutions in the world. In addition to art exhibitions, the center also provides facilities for music, drama, dance and literature. A stage for presentation.