In the German Pavilion Expo 2020, visitors pass through a "vertical campus", an ensemble of buildings under a free-form roof. Between the cubes of the exhibition and classrooms, the terraces offer views over the diverse interior of the pavilion. The opaque trapezoidal roof reduces solar gains to a minimum but allows sunlight to flow through small openings in the surface structure into the open atrium. The focus of the design of this pavilion was on sustainability. Through a clever arrangement of architectural elements, the pavilion adapts to Dubai's climatic conditions. The well-calculated design guarantees a minimal use of resources and energy consumption.