1. Open-air stage at the Eberhard-Ludwig-Gymnasium in Stuttgart. Architect: A. Bregler, Stuttgart. Two tiers are below ground level, three above. Transitions between tiers are in three steps. 2. Seating at the school playground of a primary school in Zurich. This unit provides space for 50 to 60 children. An adjoining room is located beneath the seating tiers. The entire structure is constructed of exposed concrete.
